Oil Prices in 1991: WTI & Brent History and Monthly Averages
WTI average
$21.54
EIA annual average
WTI vs prior year
−12.2%
1990: $24.53
Brent average
$20.04
EIA annual average
Brent vs prior year
−15.7%
1990: $23.76
WTI averaged $21.54 per barrel in 1991, down $2.99 (12.2%) from 1990; that was the lowest annual average since 1989.
Monthly average prices in 1991
| Month | WTI avg | WTI high | WTI low | Brent avg | Brent − WTI (matched dates) | WTI (September 2026 $) | Brent (September 2026 $) |
|---|---|---|---|---|---|---|---|
| January | $25.23 | $32.25 | $20.05 | $23.57 | −$1.67 | $63.16 | $59.00 |
| February | $20.48 | $22.78 | $17.43 | $19.54 | −$0.94 | $51.19 | $48.84 |
| March | $19.90 | $20.78 | $19.00 | $19.08 | −$0.82 | $49.67 | $47.62 |
| April | $20.83 | $21.85 | $19.28 | $19.18 | −$1.65 | $51.91 | $47.80 |
| May | $21.23 | $21.92 | $20.73 | $19.19 | −$2.05 | $52.75 | $47.68 |
| June | $20.19 | $21.16 | $19.70 | $18.17 | −$2.02 | $50.02 | $45.02 |
| July | $21.40 | $22.20 | $20.69 | $19.40 | −$2.01 | $52.94 | $47.99 |
| August | $21.69 | $22.50 | $21.29 | $19.77 | −$1.92 | $53.50 | $48.77 |
| September | $21.89 | $22.42 | $21.36 | $20.50 | −$1.39 | $53.76 | $50.34 |
| October | $23.23 | $24.12 | $22.10 | $22.21 | −$1.02 | $56.97 | $54.46 |
| November | $22.46 | $23.85 | $21.04 | $21.11 | −$1.35 | $54.92 | $51.62 |
| December | $19.50 | $21.10 | $18.28 | $18.41 | −$1.09 | $47.65 | $44.98 |
Monthly averages are EIA's published figures. Brent − WTI is the average over dates with both prices published, so it can differ from the difference between the two monthly averages. Inflation-adjusted columns use CPI-U for each month, expressed in September 2026 dollars; “—” means CPI-U for that month is not available.
The largest one-day move was −$10.77 on Jan 17, 1991 (−33.4%), the 10th largest daily dollar move in the record. The steepest fall within the year ran from $32.25 on Jan 16, 1991 to $17.43 on Feb 22, 1991, a 46% drop. The price moved by 5% or more in a single day 18 times. From $24.88 on Jan 4, 1991, WTI climbed to $32.25 by Jan 16, 1991, a 30% gain.
Brent traded below WTI throughout 1991: its monthly average was lower in every month, and on the 256 matched dates it averaged $1.50 less. Brent averaged $20.04, down $3.72 (15.7%) from 1990.
Monthly averages peaked early, at $25.23 in January, and bottomed at $19.50 in December. In September 2026 dollars (CPI-U), the 1991 average is $53.29, lower than 2025's real average by $15.15 (22.1%). The 1990s as a whole averaged $19.70, so 1991 ran above its decade. Of 40 complete years with an EIA annual average, 1991 ranks 12th lowest.
1991 summary statistics
| Measure | WTI | Brent | Brent − WTI |
|---|---|---|---|
| Average | $21.54 | $20.04 | −$1.50 |
| Change vs 1990 average | −$2.99 | −$3.72 | −$0.71 |
| Highest daily price | $32.25 Jan 16, 1991 | $30.28 Jan 16, 1991 | — |
| Lowest daily price | $17.43 Feb 22, 1991 | $17.60 Dec 23, 1991 | — |
| Highest daily spread | — | — | +$0.40 Feb 25, 1991 |
| Lowest daily spread | — | — | −$5.65 Jan 9, 1991 |
| First observation | $26.53 Jan 2, 1991 | $26.78 Jan 2, 1991 | — |
| Last observation | $19.15 Dec 31, 1991 | $17.75 Dec 31, 1991 | — |
| Published daily observations | 256 | 257 | 256 matched |
| Average in September 2026 dollars | $53.29 | $49.58 | — |
Daily spot prices in 1991
Show all 257 dates (Jan 2, 1991 – Dec 31, 1991)
| Date | WTI | Brent | Brent − WTI |
|---|---|---|---|
| Jan 2, 1991 | $26.53 | $26.78 | +$0.25 |
| Jan 3, 1991 | $25.61 | $25.05 | −$0.56 |
| Jan 4, 1991 | $24.88 | $24.08 | −$0.80 |
| Jan 7, 1991 | $27.25 | $25.93 | −$1.32 |
| Jan 8, 1991 | $27.50 | $25.73 | −$1.77 |
| Jan 9, 1991 | $28.00 | $22.35 | −$5.65 |
| Jan 10, 1991 | $27.55 | $26.58 | −$0.97 |
| Jan 11, 1991 | $27.43 | $26.05 | −$1.38 |
| Jan 14, 1991 | $30.13 | $29.55 | −$0.58 |
| Jan 15, 1991 | $30.35 | $29.25 | −$1.10 |
| Jan 16, 1991 | $32.25 | $30.28 | −$1.97 |
| Jan 17, 1991 | $21.48 | $21.10 | −$0.38 |
| Jan 18, 1991 | $20.05 | $19.10 | −$0.95 |
| Jan 21, 1991 | $21.63 | $19.25 | −$2.38 |
| Jan 22, 1991 | $24.91 | $20.73 | −$4.18 |
| Jan 23, 1991 | $24.08 | $22.15 | −$1.93 |
| Jan 24, 1991 | $25.63 | $20.90 | −$4.73 |
| Jan 25, 1991 | $24.15 | $20.80 | −$3.35 |
| Jan 28, 1991 | $21.03 | $20.40 | −$0.63 |
| Jan 29, 1991 | $21.73 | $20.75 | −$0.98 |
| Jan 30, 1991 | $21.08 | $20.95 | −$0.13 |
| Jan 31, 1991 | $21.90 | $20.70 | −$1.20 |
| Feb 1, 1991 | $21.33 | $20.80 | −$0.53 |
| Feb 4, 1991 | $21.23 | $20.45 | −$0.78 |
| Feb 5, 1991 | $20.70 | $20.20 | −$0.50 |
| Feb 6, 1991 | $21.48 | $20.93 | −$0.55 |
| Feb 7, 1991 | $21.33 | $20.90 | −$0.43 |
| Feb 8, 1991 | $21.78 | $20.65 | −$1.13 |
| Feb 11, 1991 | $22.44 | $21.23 | −$1.21 |
| Feb 12, 1991 | $22.78 | $21.10 | −$1.68 |
| Feb 13, 1991 | $22.38 | $21.00 | −$1.38 |
| Feb 14, 1991 | $22.25 | $20.50 | −$1.75 |
| Feb 15, 1991 | $20.73 | $18.35 | −$2.38 |
| Feb 18, 1991 | $20.73 | $17.68 | −$3.05 |
| Feb 19, 1991 | $20.08 | $17.85 | −$2.23 |
| Feb 20, 1991 | $20.18 | $18.75 | −$1.43 |
| Feb 21, 1991 | $18.48 | $18.55 | +$0.07 |
| Feb 22, 1991 | $17.43 | $17.80 | +$0.37 |
| Feb 25, 1991 | $17.43 | $17.83 | +$0.40 |
| Feb 26, 1991 | $18.48 | $18.00 | −$0.48 |
| Feb 27, 1991 | $19.03 | $18.65 | −$0.38 |
| Feb 28, 1991 | $19.28 | $19.50 | +$0.22 |
| Mar 1, 1991 | $19.43 | $19.33 | −$0.10 |
| Mar 4, 1991 | $20.33 | $20.20 | −$0.13 |
| Mar 5, 1991 | $20.50 | $20.05 | −$0.45 |
| Mar 6, 1991 | $19.78 | $19.85 | +$0.07 |
| Mar 7, 1991 | $19.33 | $19.65 | +$0.32 |
| Mar 8, 1991 | $19.34 | $19.10 | −$0.24 |
| Mar 11, 1991 | $19.00 | $18.60 | −$0.40 |
| Mar 12, 1991 | $20.06 | $18.43 | −$1.63 |
| Mar 13, 1991 | $20.48 | $20.33 | −$0.15 |
| Mar 14, 1991 | $20.05 | $19.98 | −$0.07 |
| Mar 15, 1991 | $19.88 | $19.05 | −$0.83 |
| Mar 18, 1991 | $19.78 | $18.30 | −$1.48 |
| Mar 19, 1991 | $20.68 | $18.95 | −$1.73 |
| Mar 20, 1991 | $20.40 | $18.98 | −$1.42 |
| Mar 21, 1991 | $20.78 | $18.80 | −$1.98 |
| Mar 22, 1991 | $19.88 | $18.95 | −$0.93 |
| Mar 25, 1991 | $19.47 | $18.60 | −$0.87 |
| Mar 26, 1991 | $19.78 | $18.35 | −$1.43 |
| Mar 27, 1991 | $19.45 | $18.15 | −$1.30 |
| Mar 28, 1991 | $19.63 | $18.00 | −$1.63 |
| Apr 1, 1991 | $19.28 | $18.00 | −$1.28 |
| Apr 2, 1991 | $19.38 | $17.63 | −$1.75 |
| Apr 3, 1991 | $19.48 | $17.75 | −$1.73 |
| Apr 4, 1991 | $19.98 | $18.00 | −$1.98 |
| Apr 5, 1991 | $20.03 | $18.35 | −$1.68 |
| Apr 8, 1991 | $20.28 | $18.58 | −$1.70 |
| Apr 9, 1991 | $20.58 | $18.60 | −$1.98 |
| Apr 10, 1991 | $21.08 | $19.25 | −$1.83 |
| Apr 11, 1991 | $20.98 | $19.50 | −$1.48 |
| Apr 12, 1991 | $21.54 | $19.93 | −$1.61 |
| Apr 15, 1991 | $21.85 | $20.23 | −$1.62 |
| Apr 16, 1991 | $21.60 | $19.90 | −$1.70 |
| Apr 17, 1991 | $21.73 | $19.85 | −$1.88 |
| Apr 18, 1991 | $21.08 | $19.40 | −$1.68 |
| Apr 19, 1991 | $21.16 | $19.18 | −$1.98 |
| Apr 22, 1991 | $21.68 | $19.78 | −$1.90 |
| Apr 23, 1991 | $21.03 | $19.60 | −$1.43 |
| Apr 24, 1991 | $21.00 | $19.55 | −$1.45 |
| Apr 25, 1991 | $20.95 | $19.60 | −$1.35 |
| Apr 26, 1991 | $21.28 | $19.63 | −$1.65 |
| Apr 29, 1991 | $21.30 | $19.95 | −$1.35 |
| Apr 30, 1991 | $20.99 | $19.70 | −$1.29 |
| May 1, 1991 | $21.28 | $19.70 | −$1.58 |
| May 2, 1991 | $21.17 | $19.70 | −$1.47 |
| May 3, 1991 | $21.43 | $19.55 | −$1.88 |
| May 6, 1991 | $21.73 | $19.80 | −$1.93 |
| May 7, 1991 | $21.72 | $19.85 | −$1.87 |
| May 8, 1991 | $21.83 | $19.80 | −$2.03 |
| May 9, 1991 | $21.92 | $20.08 | −$1.84 |
| May 10, 1991 | $21.25 | $19.53 | −$1.72 |
| May 13, 1991 | $20.89 | $19.25 | −$1.64 |
| May 14, 1991 | $20.73 | $18.95 | −$1.78 |
| May 15, 1991 | $21.04 | $18.80 | −$2.24 |
| May 16, 1991 | $20.91 | $18.75 | −$2.16 |
| May 17, 1991 | $21.19 | $18.75 | −$2.44 |
| May 20, 1991 | $21.39 | $18.90 | −$2.49 |
| May 21, 1991 | $20.95 | $19.03 | −$1.92 |
| May 22, 1991 | $20.85 | $18.58 | −$2.27 |
| May 23, 1991 | $20.95 | $18.78 | −$2.17 |
| May 24, 1991 | $21.04 | $18.83 | −$2.21 |
| May 28, 1991 | $21.34 | $19.00 | −$2.34 |
| May 29, 1991 | $21.04 | $18.75 | −$2.29 |
| May 30, 1991 | $21.30 | $18.73 | −$2.57 |
| May 31, 1991 | $21.16 | $19.00 | −$2.16 |
| Jun 3, 1991 | $21.16 | $19.00 | −$2.16 |
| Jun 4, 1991 | $20.90 | $18.83 | −$2.07 |
| Jun 5, 1991 | $20.45 | $18.63 | −$1.82 |
| Jun 6, 1991 | $20.38 | $18.03 | −$2.35 |
| Jun 7, 1991 | $20.28 | $18.28 | −$2.00 |
| Jun 10, 1991 | $19.84 | $18.00 | −$1.84 |
| Jun 11, 1991 | $19.85 | $17.85 | −$2.00 |
| Jun 12, 1991 | $20.08 | $17.73 | −$2.35 |
| Jun 13, 1991 | $19.71 | $18.00 | −$1.71 |
| Jun 14, 1991 | $19.70 | $17.70 | −$2.00 |
| Jun 17, 1991 | $19.97 | $17.85 | −$2.12 |
| Jun 18, 1991 | $20.11 | $18.00 | −$2.11 |
| Jun 19, 1991 | $19.99 | $17.88 | −$2.11 |
| Jun 20, 1991 | $20.22 | $18.15 | −$2.07 |
| Jun 21, 1991 | $20.10 | $18.43 | −$1.67 |
| Jun 24, 1991 | $19.92 | $18.18 | −$1.74 |
| Jun 25, 1991 | $20.03 | $18.15 | −$1.88 |
| Jun 26, 1991 | $20.12 | $18.10 | −$2.02 |
| Jun 27, 1991 | $20.41 | $18.08 | −$2.33 |
| Jun 28, 1991 | $20.56 | $18.48 | −$2.08 |
| Jul 1, 1991 | $20.78 | $18.53 | −$2.25 |
| Jul 2, 1991 | $20.92 | $18.55 | −$2.37 |
| Jul 3, 1991 | $20.69 | $18.50 | −$2.19 |
| Jul 4, 1991 | $20.69 | $18.48 | −$2.21 |
| Jul 5, 1991 | $20.91 | $18.70 | −$2.21 |
| Jul 8, 1991 | $21.29 | $18.98 | −$2.31 |
| Jul 9, 1991 | $21.35 | $19.03 | −$2.32 |
| Jul 10, 1991 | $21.43 | $19.23 | −$2.20 |
| Jul 11, 1991 | $21.32 | $19.20 | −$2.12 |
| Jul 12, 1991 | $21.74 | $19.78 | −$1.96 |
| Jul 15, 1991 | $21.50 | $19.60 | −$1.90 |
| Jul 16, 1991 | $21.70 | $19.83 | −$1.87 |
| Jul 17, 1991 | $22.20 | $20.13 | −$2.07 |
| Jul 18, 1991 | $21.97 | $20.28 | −$1.69 |
| Jul 19, 1991 | $22.16 | $20.28 | −$1.88 |
| Jul 22, 1991 | $21.74 | $20.08 | −$1.66 |
| Jul 23, 1991 | $21.25 | $19.58 | −$1.67 |
| Jul 24, 1991 | $21.41 | $19.33 | −$2.08 |
| Jul 25, 1991 | $21.11 | $19.60 | −$1.51 |
| Jul 26, 1991 | $21.48 | $19.73 | −$1.75 |
| Jul 29, 1991 | $21.38 | $19.58 | −$1.80 |
| Jul 30, 1991 | $21.55 | $19.48 | −$2.07 |
| Jul 31, 1991 | $21.70 | $19.65 | −$2.05 |
| Aug 1, 1991 | $21.33 | $19.73 | −$1.60 |
| Aug 2, 1991 | $21.35 | $19.40 | −$1.95 |
| Aug 5, 1991 | $21.50 | $19.50 | −$2.00 |
| Aug 6, 1991 | $21.39 | $19.45 | −$1.94 |
| Aug 7, 1991 | $21.38 | $19.35 | −$2.03 |
| Aug 8, 1991 | $21.60 | $19.70 | −$1.90 |
| Aug 9, 1991 | $21.64 | $19.58 | −$2.06 |
| Aug 12, 1991 | $21.71 | $19.63 | −$2.08 |
| Aug 13, 1991 | $21.52 | $19.50 | −$2.02 |
| Aug 14, 1991 | $21.30 | $19.23 | −$2.07 |
| Aug 15, 1991 | $21.39 | $19.25 | −$2.14 |
| Aug 16, 1991 | $21.29 | $19.35 | −$1.94 |
| Aug 19, 1991 | $22.50 | $20.55 | −$1.95 |
| Aug 20, 1991 | $22.30 | $20.98 | −$1.32 |
| Aug 21, 1991 | $21.44 | $19.55 | −$1.89 |
| Aug 22, 1991 | $21.93 | $19.53 | −$2.40 |
| Aug 23, 1991 | $21.78 | $19.85 | −$1.93 |
| Aug 26, 1991 | $21.98 | $20.03 | −$1.95 |
| Aug 27, 1991 | $21.86 | $20.03 | −$1.83 |
| Aug 28, 1991 | $21.77 | $19.98 | −$1.79 |
| Aug 29, 1991 | $22.02 | $20.30 | −$1.72 |
| Aug 30, 1991 | $22.28 | $20.53 | −$1.75 |
| Sep 2, 1991 | — | $20.65 | — |
| Sep 3, 1991 | $22.28 | $20.55 | −$1.73 |
| Sep 4, 1991 | $21.76 | $20.25 | −$1.51 |
| Sep 5, 1991 | $21.75 | $20.10 | −$1.65 |
| Sep 6, 1991 | $21.56 | $20.13 | −$1.43 |
| Sep 9, 1991 | $21.36 | $19.85 | −$1.51 |
| Sep 10, 1991 | $21.44 | $19.93 | −$1.51 |
| Sep 11, 1991 | $21.66 | $20.00 | −$1.66 |
| Sep 12, 1991 | $21.51 | $20.25 | −$1.26 |
| Sep 13, 1991 | $21.71 | $20.35 | −$1.36 |
| Sep 16, 1991 | $21.84 | $20.53 | −$1.31 |
| Sep 17, 1991 | $21.73 | $20.30 | −$1.43 |
| Sep 18, 1991 | $21.87 | $20.53 | −$1.34 |
| Sep 19, 1991 | $21.79 | $20.43 | −$1.36 |
| Sep 20, 1991 | $22.02 | $20.55 | −$1.47 |
| Sep 23, 1991 | $22.20 | $20.83 | −$1.37 |
| Sep 24, 1991 | $22.24 | $20.75 | −$1.49 |
| Sep 25, 1991 | $22.11 | $20.65 | −$1.46 |
| Sep 26, 1991 | $22.23 | $21.00 | −$1.23 |
| Sep 27, 1991 | $22.42 | $21.48 | −$0.94 |
| Sep 30, 1991 | $22.25 | $21.43 | −$0.82 |
| Oct 1, 1991 | $22.10 | $21.15 | −$0.95 |
| Oct 2, 1991 | $22.34 | $21.30 | −$1.04 |
| Oct 3, 1991 | $22.70 | $21.75 | −$0.95 |
| Oct 4, 1991 | $22.64 | $21.83 | −$0.81 |
| Oct 7, 1991 | $22.99 | $21.98 | −$1.01 |
| Oct 8, 1991 | $23.02 | $21.95 | −$1.07 |
| Oct 9, 1991 | $23.18 | $22.43 | −$0.75 |
| Oct 10, 1991 | $23.01 | $22.13 | −$0.88 |
| Oct 11, 1991 | $23.19 | $22.08 | −$1.11 |
| Oct 14, 1991 | $23.48 | $22.60 | −$0.88 |
| Oct 15, 1991 | $23.89 | $22.83 | −$1.06 |
| Oct 16, 1991 | $23.67 | $22.60 | −$1.07 |
| Oct 17, 1991 | $23.96 | $22.73 | −$1.23 |
| Oct 18, 1991 | $24.12 | $23.00 | −$1.12 |
| Oct 21, 1991 | $24.03 | $22.95 | −$1.08 |
| Oct 22, 1991 | $23.47 | $22.65 | −$0.82 |
| Oct 23, 1991 | $23.14 | $22.48 | −$0.66 |
| Oct 24, 1991 | $23.47 | $22.25 | −$1.22 |
| Oct 25, 1991 | $23.18 | $22.35 | −$0.83 |
| Oct 28, 1991 | $23.24 | $21.90 | −$1.34 |
| Oct 29, 1991 | $23.09 | $21.85 | −$1.24 |
| Oct 30, 1991 | $23.11 | $21.95 | −$1.16 |
| Oct 31, 1991 | $23.29 | $22.00 | −$1.29 |
| Nov 1, 1991 | $23.85 | $22.53 | −$1.32 |
| Nov 4, 1991 | $23.82 | $22.73 | −$1.09 |
| Nov 5, 1991 | $23.78 | $22.53 | −$1.25 |
| Nov 6, 1991 | $23.44 | $22.00 | −$1.44 |
| Nov 7, 1991 | $23.29 | $21.85 | −$1.44 |
| Nov 8, 1991 | $23.00 | $21.80 | −$1.20 |
| Nov 11, 1991 | $22.66 | $21.45 | −$1.21 |
| Nov 12, 1991 | $22.58 | $21.20 | −$1.38 |
| Nov 13, 1991 | $22.28 | $21.50 | −$0.78 |
| Nov 14, 1991 | $22.55 | $21.00 | −$1.55 |
| Nov 15, 1991 | $22.79 | $21.63 | −$1.16 |
| Nov 18, 1991 | $22.38 | $21.35 | −$1.03 |
| Nov 19, 1991 | $21.88 | $21.08 | −$0.80 |
| Nov 20, 1991 | $22.17 | $20.48 | −$1.69 |
| Nov 21, 1991 | $21.93 | $20.73 | −$1.20 |
| Nov 22, 1991 | $21.85 | $20.15 | −$1.70 |
| Nov 25, 1991 | $22.15 | $19.78 | −$2.37 |
| Nov 26, 1991 | $21.04 | $19.78 | −$1.26 |
| Nov 27, 1991 | $21.38 | $19.65 | −$1.73 |
| Nov 28, 1991 | $21.38 | $19.98 | −$1.40 |
| Nov 29, 1991 | $21.48 | $20.08 | −$1.40 |
| Dec 2, 1991 | $21.10 | $19.60 | −$1.50 |
| Dec 3, 1991 | $20.61 | $19.20 | −$1.41 |
| Dec 4, 1991 | $20.75 | $19.18 | −$1.57 |
| Dec 5, 1991 | $20.42 | $19.15 | −$1.27 |
| Dec 6, 1991 | $19.87 | $19.05 | −$0.82 |
| Dec 9, 1991 | $19.39 | $18.25 | −$1.14 |
| Dec 10, 1991 | $19.24 | $18.10 | −$1.14 |
| Dec 11, 1991 | $19.54 | $18.28 | −$1.26 |
| Dec 12, 1991 | $19.94 | $18.58 | −$1.36 |
| Dec 13, 1991 | $20.09 | $19.05 | −$1.04 |
| Dec 16, 1991 | $19.78 | $18.55 | −$1.23 |
| Dec 17, 1991 | $19.45 | $18.13 | −$1.32 |
| Dec 18, 1991 | $19.39 | $18.15 | −$1.24 |
| Dec 19, 1991 | $19.12 | $18.15 | −$0.97 |
| Dec 20, 1991 | $18.28 | $18.55 | +$0.27 |
| Dec 23, 1991 | $18.58 | $17.60 | −$0.98 |
| Dec 24, 1991 | $18.68 | $17.78 | −$0.90 |
| Dec 26, 1991 | $18.63 | $17.78 | −$0.85 |
| Dec 27, 1991 | $18.82 | $17.75 | −$1.07 |
| Dec 30, 1991 | $18.63 | $18.00 | −$0.63 |
| Dec 31, 1991 | $19.15 | $17.75 | −$1.40 |
“—” means EIA published no price for that benchmark on that date.
Price episode covering 1991: 1990–91 Gulf War spike
Source and methodology
| Provider | Series | Units | Coverage | Latest observation |
|---|---|---|---|---|
| U.S. Energy Information Administration | RWTC — WTI spot price FOB | $/bbl | Jan 2, 1991 – Dec 31, 1991 | Dec 31, 1991 |
| U.S. Energy Information Administration | RBRTE — Brent spot price FOB | $/bbl | Jan 2, 1991 – Dec 31, 1991 | Dec 31, 1991 |
| U.S. Bureau of Labor Statistics | CUUR0000SA0 — CPI-U, all items, NSA | index, 1982–84=100 | monthly and annual average | September 2026 |
Inflation adjustment: real = nominal × CPI-U(September 2026) ÷ CPI-U(period). Annual figures use the BLS annual average CPI-U; a year without one uses the mean of the months published so far.
Last updated: Oct 21, 2026, 5:27 PM CDT. Raw values are shown in source units; any conversion is labeled. See methodology and data sources.
Download:1991 daily prices (CSV)