
| Reserves | Production | Consumption | Trade | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | — | — | — | 0 | — | — | — | 361,318 | −67.3% | 87 | < 0.01% | 2,469.4 | 361,318 | 0 | 361,318 |
| 2023 | 2,204,620 | 84 | < 0.01% | 0 | — | — | — | 1,103,710 | −1.1% | 77 | 0.01% | 7,615.2 | 1,078,035 | 0 | 1,078,035 |
| 2022 | 2,204,620 | 84 | < 0.01% | 0 | — | — | — | 1,116,262 | +7.7% | 77 | 0.01% | 7,775.5 | 1,116,262 | 0 | 1,116,262 |
| 2021 | 2,204,620 | 84 | < 0.01% | 0 | — | — | — | 1,036,826 | −18.3% | 79 | 0.01% | 7,270.5 | 1,036,826 | 0 | 1,036,826 |
| 2020 | 2,204,620 | 84 | < 0.01% | 0 | — | — | — | 1,268,515 | −3.7% | 74 | 0.02% | 8,927.7 | 1,268,515 | 0 | 1,268,515 |
| 2019 | 2,204,620 | 84 | < 0.01% | 0 | — | — | — | 1,317,652 | −4.8% | 74 | 0.02% | 9,292.1 | 1,317,652 | 0 | 1,317,652 |
| 2018 | 2,204,620 | 84 | < 0.01% | 0 | — | — | — | 1,383,962 | +19.9% | 73 | 0.02% | 9,762 | 1,383,962 | 0 | 1,383,962 |
| 2017 | 2,204,620 | 84 | < 0.01% | 0 | — | — | — | 1,154,324 | −2.9% | 73 | 0.01% | 8,142.1 | 1,154,324 | 0 | 1,154,324 |
| 2016 | 2,204,620 | 85 | < 0.01% | 0 | — | — | — | 1,188,248 | +23.4% | 73 | 0.01% | 8,385 | 1,188,248 | 0 | 1,188,248 |
| 2015 | 2,204,620 | 85 | < 0.01% | 0 | — | — | — | 963,033 | +25.1% | 73 | 0.01% | 6,801.9 | 963,033 | 0 | 963,033 |
| 2014 | 2,204,620 | 85 | < 0.01% | 0 | — | — | — | 769,937 | +26.9% | 77 | 0.01% | 5,475.6 | 769,937 | 0 | 769,937 |
| 2013 | 2,204,620 | 77 | < 0.01% | 0 | — | — | — | 606,744 | −1.3% | 76 | 0.01% | 4,383.6 | 606,744 | 0 | 606,744 |
| 2012 | 2,204,620 | 77 | < 0.01% | 0 | — | — | — | 614,758 | +0.31% | 75 | 0.01% | 4,526.4 | 632,505 | 0 | 632,505 |
| 2011 | 2,204,620 | 77 | < 0.01% | 0 | — | — | — | 612,884 | +0.31% | 73 | 0.01% | 4,598.8 | 623,907 | 0 | 623,907 |
| 2010 | 2,204,620 | 77 | < 0.01% | 0 | — | — | — | 611,010 | +112.5% | 72 | 0.01% | 4,671.7 | 629,088 | 0 | 629,088 |
| 2009 | 2,204,620 | 77 | < 0.01% | 0 | — | — | — | 287,593 | +7.2% | 77 | < 0.01% | 2,235.9 | 243,721 | 0 | 243,721 |
| 2008 | 2,204,620 | 77 | < 0.01% | 0 | — | — | — | 268,192 | −0.29% | 78 | < 0.01% | 2,113.2 | 372,360 | 0 | 372,360 |
| 2007 | — | — | — | 0 | — | — | — | 268,964 | −13.8% | 78 | < 0.01% | 2,145.5 | 268,964 | 0 | 268,964 |
| 2006 | — | — | — | 0 | — | — | — | 311,954 | +8.8% | 74 | < 0.01% | 2,520.4 | 311,954 | 0 | 311,954 |
| 2005 | — | — | — | 0 | — | — | — | 286,601 | −7.4% | 72 | < 0.01% | 2,345.5 | 286,601 | 0 | 286,601 |
| 2004 | — | — | — | 0 | — | — | — | 309,348 | −2.6% | 70 | < 0.01% | 2,568.8 | 309,749 | 0 | 309,749 |
| 2003 | — | — | — | 0 | — | — | — | 317,615 | +4.4% | 70 | 0.01% | 2,683.9 | 345,023 | 0 | 345,023 |
| 2002 | — | — | — | 0 | — | — | — | 304,238 | +6.6% | 68 | 0.01% | 2,620.1 | 304,238 | 0 | 304,238 |
| 2001 | — | — | — | 0 | — | — | — | 285,498 | +2% | 69 | 0.01% | 2,507.6 | 285,498 | 0 | 285,498 |
| 2000 | — | — | — | 0 | — | — | — | 279,987 | +128.8% | 68 | 0.01% | 2,510 | 279,987 | 0 | 279,987 |
| 1999 | — | — | — | 0 | — | — | — | 122,357 | −7.5% | 81 | < 0.01% | 1,119.8 | 122,356 | 0 | 122,356 |
| 1998 | — | — | — | 0 | — | — | — | 132,277 | +6.2% | 77 | < 0.01% | 1,236 | 132,277 | 0 | 132,277 |
| 1997 | — | — | — | 0 | — | — | — | 124,561 | −32.7% | 78 | < 0.01% | 1,188.8 | 124,561 | 0 | 124,561 |
| 1996 | — | — | — | 0 | — | — | — | 185,188 | −9.7% | 74 | < 0.01% | 1,806.4 | 277,782 | 0 | 277,782 |
| 1995 | — | — | — | 0 | — | — | — | 205,030 | −7.5% | 70 | < 0.01% | 2,046.4 | 205,030 | 0 | 205,030 |
| 1994 | — | — | — | 0 | — | — | — | 221,564 | +27.2% | 74 | < 0.01% | 2,265.3 | 221,564 | 0 | 221,564 |
| 1993 | — | — | — | 0 | — | — | — | 174,165 | −7.1% | 78 | < 0.01% | 1,825.1 | 174,165 | 0 | 174,165 |
| 1992 | — | — | — | 0 | — | — | — | 187,393 | −3.4% | 75 | < 0.01% | 2,014.2 | 133,380 | 0 | 133,380 |
| 1991 | — | — | — | 0 | — | — | — | 194,007 | +7.3% | 59 | < 0.01% | 2,140.9 | 194,007 | 0 | 194,007 |
| 1990 | — | — | — | 0 | — | — | — | 180,779 | −20.8% | 58 | < 0.01% | 2,049 | 180,779 | 0 | 180,779 |
| 1989 | — | — | — | 0 | — | — | — | 228,178 | +21.8% | 56 | < 0.01% | 2,652.8 | 228,178 | 0 | 228,178 |
| 1988 | — | — | — | 0 | — | — | — | 187,393 | +9.7% | 57 | < 0.01% | 2,224.2 | 187,393 | 0 | 187,393 |
| 1987 | — | — | — | 0 | — | — | — | 170,858 | −11.4% | 61 | < 0.01% | 2,062.9 | 170,858 | 0 | 170,858 |
| 1986 | — | — | — | 0 | — | — | — | 192,904 | −1.1% | 56 | < 0.01% | 2,368.4 | 192,904 | 0 | 192,904 |
| 1985 | — | — | — | 0 | — | — | — | 195,109 | +71.8% | 55 | < 0.01% | 2,435.3 | 195,109 | 0 | 195,109 |
| 1984 | — | — | — | 0 | — | — | — | 113,538 | +6.2% | 62 | < 0.01% | 1,441 | 113,538 | 0 | 113,538 |
| 1983 | — | — | — | 0 | — | — | — | 106,924 | +49.2% | 62 | < 0.01% | 1,379.6 | 106,924 | 0 | 106,924 |
| 1982 | — | — | — | 0 | — | — | — | 71,650 | −20.7% | 63 | < 0.01% | 936.6 | 71,650 | 0 | 71,650 |
| 1981 | — | — | — | 0 | — | — | — | 90,390 | −31.7% | 60 | < 0.01% | 1,193.7 | 90,390 | 0 | 90,390 |
| 1980 | — | — | — | 0 | — | — | — | 132,277 | — | 53 | < 0.01% | 1,765.9 | 132,277 | 0 | 132,277 |