
| Reserves | Production | Consumption | Trade | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | — | — | — | 0 | — | — | — | 9,537,142 | −11.2% | 37 | 0.10% | 286.6 | 8,476,381 | 168,966 | 8,307,416 |
| 2023 | 176,369,600 | 69 | 0.01% | 0 | — | — | — | 10,742,620 | +3.5% | 36 | 0.11% | 323.4 | 10,616,201 | 17,053 | 10,599,148 |
| 2022 | 176,369,600 | 69 | 0.01% | 0 | — | — | — | 10,382,917 | +0.07% | 35 | 0.11% | 313.3 | 9,843,492 | 122,878 | 9,720,614 |
| 2021 | 176,369,600 | 69 | 0.01% | 0 | — | — | — | 10,375,242 | +13.7% | 35 | 0.12% | 314 | 8,904,172 | 587,435 | 8,316,737 |
| 2020 | 176,369,600 | 69 | 0.01% | 0 | — | — | — | 9,126,645 | −22.5% | 35 | 0.11% | 277 | 9,032,628 | 253,342 | 8,779,286 |
| 2019 | 176,369,600 | 69 | 0.01% | 0 | — | — | — | 11,769,309 | −21.3% | 34 | 0.14% | 358.1 | 12,460,791 | 185,265 | 12,275,526 |
| 2018 | 176,369,600 | 69 | 0.01% | 0 | — | — | — | 14,946,884 | −13.1% | 33 | 0.17% | 456.3 | 16,138,921 | 127,912 | 16,011,010 |
| 2017 | 176,369,600 | 68 | 0.01% | 0 | — | — | — | 17,197,562 | +8.1% | 31 | 0.20% | 526.8 | 18,209,504 | 70,558 | 18,138,946 |
| 2016 | 176,369,600 | 68 | 0.01% | 0 | — | — | — | 15,906,866 | +4.1% | 32 | 0.19% | 488.8 | 16,026,814 | 119,948 | 15,906,866 |
| 2015 | 176,369,600 | 68 | 0.01% | 0 | — | — | — | 15,287,285 | −2.4% | 33 | 0.18% | 471 | 15,456,623 | 169,338 | 15,287,285 |
| 2014 | 176,369,600 | 68 | 0.02% | 0 | — | — | — | 15,669,931 | −17.9% | 33 | 0.18% | 484.4 | 15,863,154 | 193,222 | 15,669,931 |
| 2013 | 0 | — | — | 0 | — | — | — | 19,093,112 | +6.4% | 31 | 0.21% | 593.1 | 19,985,822 | 217,106 | 19,768,715 |
| 2012 | 0 | — | — | 0 | — | — | — | 17,942,300 | +16.7% | 32 | 0.20% | 560.2 | 19,669,713 | 197,907 | 19,471,806 |
| 2011 | 0 | — | — | 0 | — | — | — | 15,375,020 | −15.5% | 32 | 0.18% | 482.5 | 17,254,575 | 147,506 | 17,107,069 |
| 2010 | 0 | — | — | 0 | — | — | — | 18,196,933 | +5.5% | 30 | 0.22% | 573.9 | 21,107,222 | 146,018 | 20,961,204 |
| 2009 | 0 | — | — | 0 | — | — | — | 17,242,333 | −19.3% | 31 | 0.23% | 546.5 | 17,710,337 | 107,064 | 17,603,272 |
| 2008 | 0 | — | — | 0 | — | — | — | 21,377,098 | −6.6% | 29 | 0.28% | 681 | 22,829,246 | 148,290 | 22,680,955 |
| 2007 | — | — | — | 0 | — | — | — | 22,880,649 | +4% | 29 | 0.31% | 733 | 19,216,751 | 158,619 | 19,058,132 |
| 2006 | — | — | — | 0 | — | — | — | 22,004,312 | −7.2% | 29 | 0.31% | 709.2 | 20,459,110 | 153,440 | 20,305,670 |
| 2005 | — | — | — | 0 | −100% | — | — | 23,716,200 | +9.6% | 27 | 0.35% | 769.7 | 20,180,444 | 149,503 | 20,030,941 |
| 2004 | — | — | — | 176,370 | −90.8% | 54 | < 0.01% | 21,632,834 | −3.1% | 27 | 0.34% | 707.2 | 21,495,045 | 120,023 | 21,375,022 |
| 2003 | — | — | — | 1,916,917 | +6.6% | 40 | 0.03% | 22,317,368 | +2.7% | 26 | 0.38% | 734.8 | 18,529,831 | 92,435 | 18,437,397 |
| 2002 | — | — | — | 1,797,868 | −29% | 40 | 0.03% | 21,737,553 | −1.1% | 26 | 0.40% | 720.7 | 20,023,461 | 136,000 | 19,887,461 |
| 2001 | — | — | — | 2,530,904 | −33.7% | 38 | 0.05% | 21,981,164 | −11.9% | 25 | 0.42% | 733.9 | 17,657,904 | 116,000 | 17,541,904 |
| 2000 | — | — | — | 3,816,197 | −32% | 34 | 0.07% | 24,951,889 | −4.7% | 24 | 0.48% | 838.9 | 20,979,164 | 98,000 | 20,881,164 |
| 1999 | — | — | — | 5,612,963 | −9.1% | 30 | 0.11% | 26,194,193 | −8.7% | 23 | 0.53% | 886.7 | 19,707,098 | 86,000 | 19,621,098 |
| 1998 | — | — | — | 6,171,834 | −17.8% | 29 | 0.12% | 28,705,255 | +17.4% | 23 | 0.58% | 976.7 | 20,344,233 | 72,000 | 20,272,233 |
| 1997 | — | — | — | 7,505,629 | −16% | 26 | 0.15% | 24,458,054 | −11.2% | 24 | 0.49% | 835.2 | 15,036,611 | 241,000 | 14,795,611 |
| 1996 | — | — | — | 8,939,734 | −3.6% | 26 | 0.18% | 27,530,192 | +3.6% | 24 | 0.55% | 943.1 | 17,416,498 | 320,000 | 17,096,498 |
| 1995 | — | — | — | 9,275,939 | −6.9% | 25 | 0.19% | 26,566,773 | +7.1% | 23 | 0.54% | 913.1 | 14,597,891 | 432,000 | 14,165,891 |
| 1994 | — | — | — | 9,963,780 | −11.8% | 25 | 0.20% | 24,795,361 | −3.1% | 23 | 0.52% | 855 | 13,490,070 | 606,000 | 12,884,070 |
| 1993 | — | — | — | 11,296,473 | −7.3% | 24 | 0.24% | 25,598,945 | −21.2% | 23 | 0.54% | 885.8 | 15,686,974 | 686,000 | 15,000,974 |
| 1992 | — | — | — | 12,187,139 | −8.6% | 24 | 0.25% | 32,474,053 | −10.3% | 20 | 0.68% | 1,128.5 | 24,240,899 | 548,000 | 23,692,899 |
| 1991 | — | — | — | 13,330,235 | −5.7% | 21 | 0.27% | 36,197,656 | +7.2% | 17 | 0.74% | 1,264.1 | 24,023,744 | 676,000 | 23,347,744 |
| 1990 | — | — | — | 14,131,614 | −6% | 18 | 0.27% | 33,765,960 | −2% | 16 | 0.68% | 1,185 | 21,448,748 | 645,000 | 20,803,748 |
| 1989 | — | — | — | 15,034,406 | −1.1% | 18 | 0.29% | 34,458,211 | +9.1% | 16 | 0.68% | 1,215.8 | 17,636,960 | 785,000 | 16,851,960 |
| 1988 | — | — | — | 15,206,366 | −12.7% | 18 | 0.29% | 31,590,000 | −2.9% | 17 | 0.62% | 1,121 | 13,407,397 | 1,682,000 | 11,725,397 |
| 1987 | — | — | — | 17,419,805 | −4.4% | 17 | 0.34% | 32,529,168 | −10.4% | 16 | 0.66% | 1,160.8 | 14,724,657 | 927,000 | 13,797,657 |
| 1986 | — | — | — | 18,227,798 | −2.5% | 17 | 0.37% | 36,291,352 | −14.8% | 16 | 0.77% | 1,301.9 | 18,647,778 | 761,000 | 17,886,778 |
| 1985 | — | — | — | 18,698,485 | −10.8% | 17 | 0.39% | 42,582,235 | −4.4% | 14 | 0.91% | 1,535.4 | 20,803,897 | 1,078,000 | 19,725,897 |
| 1984 | — | — | — | 20,965,936 | −3% | 17 | 0.45% | 44,557,575 | −4.9% | 12 | 0.99% | 1,615.1 | 23,839,658 | 774,000 | 23,065,658 |
| 1983 | — | — | — | 21,617,401 | −1.7% | 17 | 0.49% | 46,838,254 | −11.5% | 12 | 1.1% | 1,706.6 | 20,448,953 | 614,000 | 19,834,953 |
| 1982 | — | — | — | 21,997,698 | −4.2% | 17 | 0.51% | 52,945,052 | +5.9% | 9 | 1.3% | 1,940 | 25,311,242 | 815,000 | 24,496,242 |
| 1981 | — | — | — | 22,960,015 | +0.59% | 16 | 0.55% | 49,998,577 | −10.5% | 9 | 1.2% | 1,843.1 | 30,324,548 | 766,000 | 29,558,548 |
| 1980 | — | — | — | 22,824,431 | — | 15 | 0.55% | 55,834,206 | — | 9 | 1.4% | 2,070.2 | 32,429,960 | 485,000 | 31,944,960 |