
| Reserves | Production | Consumption | Trade | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | — | — | — | 0 | — | — | — | 942,727 | −23.9% | 77 | 0.01% | 581.5 | 942,727 | 0 | 942,727 |
| 2023 | 0 | — | — | 0 | — | — | — | 1,239,243 | −13.5% | 74 | 0.01% | 764.5 | 1,239,253 | 519.2 | 1,238,734 |
| 2022 | 0 | — | — | 0 | — | — | — | 1,432,106 | +1.9% | 72 | 0.02% | 883.8 | 1,432,109 | 3.31 | 1,432,106 |
| 2021 | 0 | — | — | 0 | — | — | — | 1,405,210 | −6.3% | 73 | 0.02% | 863.9 | 1,383,539 | 0 | 1,383,539 |
| 2020 | 0 | — | — | 0 | — | — | — | 1,499,595 | −13.4% | 69 | 0.02% | 915.6 | 1,521,266 | 0 | 1,521,266 |
| 2019 | 0 | — | — | 0 | — | — | — | 1,732,073 | +39.3% | 68 | 0.02% | 1,053.6 | 1,736,659 | 0 | 1,736,659 |
| 2018 | 0 | — | — | 0 | — | — | — | 1,243,803 | +11.1% | 75 | 0.01% | 756.1 | 1,291,189 | 0 | 1,291,189 |
| 2017 | 0 | — | — | 0 | — | — | — | 1,119,122 | −29.7% | 75 | 0.01% | 663.8 | 1,217,732 | 0 | 1,217,732 |
| 2016 | 0 | — | — | 0 | — | — | — | 1,591,100 | −1.2% | 67 | 0.02% | 915.5 | 1,731,321 | 0 | 1,731,321 |
| 2015 | 0 | — | — | 0 | — | — | — | 1,610,262 | −3.8% | 67 | 0.02% | 914.5 | 1,610,262 | 0 | 1,610,262 |
| 2014 | 0 | — | — | 0 | — | — | — | 1,674,611 | +5.1% | 64 | 0.02% | 939.4 | 1,822,200 | 0 | 1,822,200 |
| 2013 | 0 | — | — | 0 | — | — | — | 1,593,465 | −0.37% | 63 | 0.02% | 883.6 | 1,593,465 | 0 | 1,593,465 |
| 2012 | 0 | — | — | 0 | — | — | — | 1,599,447 | −4.4% | 63 | 0.02% | 877.3 | 1,599,447 | 0 | 1,599,447 |
| 2011 | 0 | — | — | 0 | — | — | — | 1,672,630 | +7.6% | 62 | 0.02% | 908.1 | 1,672,630 | 0 | 1,672,630 |
| 2010 | 0 | — | — | 0 | — | — | — | 1,554,627 | −6.3% | 62 | 0.02% | 837 | 1,554,627 | 0 | 1,554,627 |
| 2009 | 0 | — | — | 0 | — | — | — | 1,658,668 | −0.69% | 61 | 0.02% | 888.2 | 1,658,668 | 0 | 1,658,668 |
| 2008 | 0 | — | — | 0 | — | — | — | 1,670,264 | +0.91% | 62 | 0.02% | 891 | 1,961,873 | 0 | 1,961,873 |
| 2007 | — | — | — | 0 | — | — | — | 1,655,160 | +0.1% | 60 | 0.02% | 879.7 | 1,944,133 | 0 | 1,944,133 |
| 2006 | — | — | — | 0 | — | — | — | 1,653,467 | +12.8% | 60 | 0.02% | 875.7 | 1,942,144 | 0 | 1,942,144 |
| 2005 | — | — | — | 0 | — | — | — | 1,466,074 | +2.3% | 59 | 0.02% | 774 | 1,674,430 | 0 | 1,674,430 |
| 2004 | — | — | — | 0 | — | — | — | 1,433,005 | +10.6% | 59 | 0.02% | 754.5 | 1,601,360 | 0 | 1,601,360 |
| 2003 | — | — | — | 0 | — | — | — | 1,295,912 | +31.7% | 60 | 0.02% | 681 | 1,448,161 | 0 | 1,448,161 |
| 2002 | — | — | — | 0 | — | — | — | 984,314 | +278.5% | 62 | 0.02% | 516.6 | 984,314 | 0 | 984,314 |
| 2001 | — | — | — | 0 | — | — | — | 260,025 | +28.3% | 71 | < 0.01% | 136.4 | 260,025 | 0 | 260,025 |
| 2000 | — | — | — | 0 | — | — | — | 202,747 | +15% | 72 | < 0.01% | 106.4 | 202,747 | 0 | 202,747 |
| 1999 | — | — | — | 0 | — | — | — | 176,370 | −8.6% | 69 | < 0.01% | 92.96 | 176,370 | 0 | 176,370 |
| 1998 | — | — | — | 0 | — | — | — | 192,904 | +1.2% | 71 | < 0.01% | 102.3 | 192,904 | 0 | 192,904 |
| 1997 | — | — | — | 0 | — | — | — | 190,700 | +1.8% | 71 | < 0.01% | 101.8 | 190,700 | 0 | 190,700 |
| 1996 | — | — | — | 0 | — | — | — | 187,393 | +3% | 72 | < 0.01% | 100.8 | 187,393 | 0 | 187,393 |
| 1995 | — | — | — | 0 | — | — | — | 181,881 | +1.9% | 73 | < 0.01% | 98.48 | 181,881 | 0 | 181,881 |
| 1994 | — | — | — | 0 | — | — | — | 178,574 | +1.2% | 77 | < 0.01% | 97.42 | 178,574 | 0 | 178,574 |
| 1993 | — | — | — | 0 | — | — | — | 176,370 | +3.9% | 77 | < 0.01% | 96.98 | 176,370 | 0 | 176,370 |
| 1992 | — | — | — | 0 | — | — | — | 169,756 | −19.8% | 78 | < 0.01% | 94.14 | 169,756 | 0 | 169,756 |
| 1991 | — | — | — | 0 | — | — | — | 211,644 | −9.9% | 58 | < 0.01% | 118.4 | 211,644 | 0 | 211,644 |
| 1990 | — | — | — | 0 | — | — | — | 234,792 | −28.5% | 55 | < 0.01% | 132.6 | 234,792 | 0 | 234,792 |
| 1989 | — | — | — | 0 | — | — | — | 328,489 | −16.8% | 54 | 0.01% | 187.1 | 328,489 | 0 | 328,489 |
| 1988 | — | — | — | 0 | — | — | — | 394,627 | +22.2% | 54 | 0.01% | 226.5 | 394,627 | 0 | 394,627 |
| 1987 | — | — | — | 0 | — | — | — | 322,977 | +26.3% | 54 | 0.01% | 186.8 | 322,977 | 0 | 322,977 |
| 1986 | — | — | — | 0 | — | — | — | 255,736 | +132% | 54 | 0.01% | 149.2 | 255,736 | 0 | 255,736 |
| 1985 | — | — | — | 0 | — | — | — | 110,231 | +0% | 64 | < 0.01% | 64.85 | 110,231 | 0 | 110,231 |
| 1984 | — | — | — | 0 | — | — | — | 110,231 | −41.5% | 63 | < 0.01% | 65.47 | 110,231 | 0 | 110,231 |
| 1983 | — | — | — | 0 | — | — | — | 188,495 | — | 54 | < 0.01% | 113.1 | 188,495 | 0 | 188,495 |
| 1982 | — | — | — | 0 | — | — | — | 0 | — | — | — | 0 | 0 | 0 | 0 |
| 1981 | — | — | — | 0 | — | — | — | 0 | — | — | — | 0 | 0 | 0 | 0 |
| 1980 | — | — | — | 0 | — | — | — | 0 | — | — | — | 0 | 0 | 0 | 0 |