
| Reserves | Production | Consumption | Trade | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | — | — | — | 0 | — | — | — | 495,342 | −66.5% | 85 | 0.01% | 188.5 | 407,990 | 99,197 | 308,794 |
| 2023 | 44,092,400 | 76 | < 0.01% | 0 | — | — | — | 1,477,896 | +1.4% | 70 | 0.02% | 568.8 | 1,886,422 | 84,192 | 1,802,230 |
| 2022 | 44,092,400 | 76 | < 0.01% | 0 | — | — | — | 1,456,982 | +15.8% | 71 | 0.02% | 570.2 | 1,470,701 | 105,603 | 1,365,098 |
| 2021 | 44,092,400 | 76 | < 0.01% | 0 | — | — | — | 1,258,707 | +66.9% | 74 | 0.01% | 500.6 | 1,909,573 | 141,520 | 1,768,054 |
| 2020 | 44,092,400 | 76 | < 0.01% | 0 | — | — | — | 754,052 | +181.3% | 83 | 0.01% | 302.7 | 440,712 | 146,816 | 293,896 |
| 2019 | 44,092,400 | 76 | < 0.01% | 0 | — | — | — | 268,013 | −81.1% | 94 | < 0.01% | 108.7 | 393,853 | 125,840 | 268,013 |
| 2018 | 44,092,400 | 76 | < 0.01% | 0 | — | — | — | 1,420,161 | +7.6% | 71 | 0.02% | 582.9 | 1,764,919 | 123,420 | 1,641,499 |
| 2017 | 44,092,400 | 77 | < 0.01% | 0 | — | — | — | 1,319,959 | −27.1% | 70 | 0.02% | 548.8 | 1,395,097 | 75,138 | 1,319,959 |
| 2016 | 44,092,400 | 77 | < 0.01% | 0 | — | — | — | 1,811,053 | −10.5% | 65 | 0.02% | 762 | 1,875,006 | 63,953 | 1,811,053 |
| 2015 | 44,092,400 | 77 | < 0.01% | 0 | — | — | — | 2,024,080 | −9.5% | 64 | 0.02% | 860.9 | 2,605,225 | 57,896 | 2,547,329 |
| 2014 | 44,092,400 | 77 | < 0.01% | 0 | — | — | — | 2,237,689 | −4.2% | 61 | 0.03% | 960.7 | 2,175,960 | 32,094 | 2,143,866 |
| 2013 | 15,432,340 | 70 | < 0.01% | 0 | — | — | — | 2,334,693 | −13% | 60 | 0.03% | 1,009.7 | 2,651,784 | 38,622 | 2,613,162 |
| 2012 | 15,432,340 | 70 | < 0.01% | 0 | — | — | — | 2,684,125 | +21.7% | 58 | 0.03% | 1,167 | 2,331,393 | 20,850 | 2,310,543 |
| 2011 | 15,432,340 | 71 | < 0.01% | 0 | — | — | — | 2,205,222 | +1.6% | 58 | 0.03% | 963.1 | 2,427,926 | 3,180.6 | 2,424,745 |
| 2010 | 15,432,340 | 71 | < 0.01% | 0 | — | — | — | 2,170,448 | +7.7% | 58 | 0.03% | 952.1 | 1,874,315 | 6,414.6 | 1,867,901 |
| 2009 | 15,432,340 | 71 | < 0.01% | 0 | — | — | — | 2,015,023 | −18.8% | 58 | 0.03% | 888.9 | 1,987,526 | 4,256.9 | 1,983,269 |
| 2008 | 15,432,340 | 71 | < 0.01% | 0 | — | — | — | 2,483,070 | −10.8% | 56 | 0.03% | 1,107 | 1,819,282 | 5,845.3 | 1,813,437 |
| 2007 | — | — | — | 0 | — | — | — | 2,782,230 | −4.9% | 56 | 0.04% | 1,266.5 | 2,068,041 | 5,180.9 | 2,062,860 |
| 2006 | — | — | — | 0 | — | — | — | 2,925,531 | −11.7% | 54 | 0.04% | 1,370.7 | 2,350,813 | 7,874.8 | 2,342,938 |
| 2005 | — | — | — | 0 | — | — | — | 3,312,442 | +4.3% | 52 | 0.05% | 1,594.3 | 2,994,027 | 11,630 | 2,982,397 |
| 2004 | — | — | — | 0 | — | — | — | 3,175,755 | +2.8% | 52 | 0.05% | 1,562.1 | 3,302,521 | 11,444 | 3,291,077 |
| 2003 | — | — | — | 0 | — | — | — | 3,088,673 | −2.5% | 52 | 0.05% | 1,547.1 | 3,014,818 | 11,306 | 3,003,512 |
| 2002 | — | — | — | 0 | — | — | — | 3,168,039 | −4.2% | 52 | 0.06% | 1,612.9 | 3,223,154 | 11,169 | 3,211,986 |
| 2001 | — | — | — | 0 | — | — | — | 3,306,930 | +3.5% | 52 | 0.06% | 1,712.1 | 3,380,785 | 11,715 | 3,369,070 |
| 2000 | — | — | — | 0 | — | — | — | 3,194,494 | +18.4% | 52 | 0.06% | 1,680.2 | 3,068,831 | 10,634 | 3,058,197 |
| 1999 | — | — | — | 0 | — | — | — | 2,698,455 | −13.9% | 51 | 0.05% | 1,438 | 2,678,613 | 10,890 | 2,667,724 |
| 1998 | — | — | — | 0 | — | — | — | 3,132,765 | +2.9% | 51 | 0.06% | 1,688.3 | 3,216,541 | 11,146 | 3,205,395 |
| 1997 | — | — | — | 0 | — | — | — | 3,045,683 | −9% | 50 | 0.06% | 1,658.7 | 3,379,682 | 11,711 | 3,367,971 |
| 1996 | — | — | — | 0 | — | — | — | 3,346,613 | +10.7% | 49 | 0.07% | 1,839.6 | 3,136,072 | 10,867 | 3,125,205 |
| 1995 | — | — | — | 0 | — | — | — | 3,023,636 | −1.2% | 50 | 0.06% | 1,674.8 | 3,207,722 | 11,115 | 3,196,607 |
| 1994 | — | — | — | 0 | — | — | — | 3,060,013 | −8.8% | 48 | 0.06% | 1,704.7 | 2,717,194 | 11,203 | 2,705,991 |
| 1993 | — | — | — | 0 | — | — | — | 3,354,329 | −0.29% | 46 | 0.07% | 1,876 | 3,258,428 | 11,291 | 3,247,138 |
| 1992 | — | — | — | 0 | — | — | — | 3,364,250 | −7% | 44 | 0.07% | 1,890.9 | 3,424,877 | 11,868 | 3,413,010 |
| 1991 | — | — | — | 0 | −100% | — | — | 3,618,884 | −2.2% | 38 | 0.07% | 2,047.9 | 3,527,392 | 12,223 | 3,515,169 |
| 1990 | — | — | — | 27,558 | −41.9% | 53 | < 0.01% | 3,701,557 | −2% | 38 | 0.07% | 2,106.7 | 3,440,310 | 11,921 | 3,428,388 |
| 1989 | — | — | — | 47,399 | −4.4% | 53 | < 0.01% | 3,778,719 | +5.6% | 37 | 0.07% | 2,152.5 | 3,671,795 | 12,723 | 3,659,071 |
| 1988 | — | — | — | 49,604 | +0% | 53 | < 0.01% | 3,578,098 | −0.15% | 37 | 0.07% | 2,030.1 | 3,818,402 | 13,231 | 3,805,171 |
| 1987 | — | — | — | 49,604 | −16.7% | 52 | < 0.01% | 3,583,610 | +39.4% | 35 | 0.07% | 2,024.4 | 3,239,689 | 11,226 | 3,228,463 |
| 1986 | — | — | — | 59,525 | −5.3% | 51 | < 0.01% | 2,570,587 | +47% | 39 | 0.05% | 1,451.5 | 2,895,768 | 10,034 | 2,885,734 |
| 1985 | — | — | — | 62,832 | −18.6% | 50 | < 0.01% | 1,748,264 | +6.4% | 41 | 0.04% | 990.2 | 2,114,231 | 7,326 | 2,106,905 |
| 1984 | — | — | — | 77,162 | −6.7% | 50 | < 0.01% | 1,643,544 | −0.13% | 40 | 0.04% | 934.9 | 1,536,620 | 5,324.6 | 1,531,296 |
| 1983 | — | — | — | 82,673 | +21% | 49 | < 0.01% | 1,645,749 | +14.1% | 41 | 0.04% | 941.1 | 1,571,894 | 5,446.8 | 1,566,447 |
| 1982 | — | — | — | 68,343 | −10.1% | 49 | < 0.01% | 1,441,821 | +1.1% | 39 | 0.03% | 829.7 | 1,364,660 | 4,728.7 | 1,359,931 |
| 1981 | — | — | — | 76,059 | +15% | 48 | < 0.01% | 1,426,389 | +27.2% | 40 | 0.03% | 827.2 | 1,420,878 | 4,923.5 | 1,415,954 |
| 1980 | — | — | — | 66,139 | — | 47 | < 0.01% | 1,121,049 | — | 40 | 0.03% | 656.5 | 1,309,544 | 4,537.7 | 1,305,007 |