
| Reserves | Production | Consumption | Trade | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | — | — | — | 0 | — | — | — | 31,393 | −10.4% | 114 | < 0.01% | 93.29 | 31,621 | 0 | 31,621 |
| 2023 | 0 | — | — | 0 | — | — | — | 35,021 | −48% | 113 | < 0.01% | 105.3 | 34,857 | 0 | 34,857 |
| 2022 | 0 | — | — | 0 | — | — | — | 67,375 | −6.3% | 109 | < 0.01% | 206.3 | 2,954.5 | 12.91 | 2,941.6 |
| 2021 | 0 | — | — | 0 | — | — | — | 71,892 | −0.05% | 108 | < 0.01% | 224.6 | 65,806 | 0 | 65,806 |
| 2020 | 0 | — | — | 0 | — | — | — | 71,928 | +1.8% | 108 | < 0.01% | 228.1 | 80,382 | 0 | 80,382 |
| 2019 | 0 | — | — | 0 | — | — | — | 70,671 | +1% | 111 | < 0.01% | 227.9 | 78,590 | 0 | 78,590 |
| 2018 | 0 | — | — | 0 | — | — | — | 69,948 | −6.2% | 109 | < 0.01% | 230.1 | 69,948 | 0 | 69,948 |
| 2017 | 0 | — | — | 0 | — | — | — | 74,608 | −16.4% | 108 | < 0.01% | 250.2 | 74,608 | 0 | 74,608 |
| 2016 | 0 | — | — | 0 | — | — | — | 89,198 | +10.8% | 107 | < 0.01% | 305.7 | 89,198 | 0 | 89,198 |
| 2015 | 0 | — | — | 0 | — | — | — | 80,469 | −14.1% | 110 | < 0.01% | 282.6 | 80,469 | 0 | 80,469 |
| 2014 | 0 | — | — | 0 | — | — | — | 93,696 | +13.3% | 107 | < 0.01% | 336.9 | 93,696 | 0 | 93,696 |
| 2013 | 0 | — | — | 0 | — | — | — | 82,673 | −8.5% | 108 | < 0.01% | 304.3 | 82,673 | 0 | 82,673 |
| 2012 | 0 | — | — | 0 | — | — | — | 90,389 | −7.9% | 106 | < 0.01% | 340.5 | 90,389 | 0 | 90,389 |
| 2011 | 0 | — | — | 0 | — | — | — | 98,106 | −12.7% | 103 | < 0.01% | 378.4 | 98,106 | 0 | 98,106 |
| 2010 | 0 | — | — | 0 | — | — | — | 112,436 | −1.9% | 97 | < 0.01% | 443.2 | 112,436 | 0 | 112,436 |
| 2009 | 0 | — | — | 0 | — | — | — | 114,640 | −9.6% | 95 | < 0.01% | 460.2 | 114,640 | 0 | 114,640 |
| 2008 | 0 | — | — | 0 | — | — | — | 126,766 | −5% | 94 | < 0.01% | 518.5 | 126,766 | 0 | 126,766 |
| 2007 | — | — | — | 0 | — | — | — | 133,380 | −17.7% | 87 | < 0.01% | 555.4 | 133,380 | 0 | 133,380 |
| 2006 | — | — | — | 0 | — | — | — | 162,040 | +20.5% | 83 | < 0.01% | 685.4 | 162,040 | 0 | 162,040 |
| 2005 | — | — | — | 0 | — | — | — | 134,482 | −3.2% | 83 | < 0.01% | 578 | 134,482 | 0 | 134,482 |
| 2004 | — | — | — | 0 | — | — | — | 138,891 | +46.5% | 82 | < 0.01% | 606.1 | 138,891 | 0 | 138,891 |
| 2003 | — | — | — | 0 | — | — | — | 94,799 | −24.6% | 84 | < 0.01% | 419.6 | 94,799 | 0 | 94,799 |
| 2002 | — | — | — | 0 | — | — | — | 125,663 | −40.3% | 84 | < 0.01% | 563 | 125,663 | 0 | 125,663 |
| 2001 | — | — | — | 0 | — | — | — | 210,541 | +11% | 76 | < 0.01% | 953.2 | 210,541 | 0 | 210,541 |
| 2000 | — | — | — | 0 | — | — | — | 189,597 | +12.4% | 75 | < 0.01% | 869.4 | 189,597 | 0 | 189,597 |
| 1999 | — | — | — | 0 | — | — | — | 168,653 | +0.66% | 70 | < 0.01% | 784.6 | 168,653 | 0 | 168,653 |
| 1998 | — | — | — | 0 | — | — | — | 167,551 | −21.6% | 73 | < 0.01% | 790 | 167,551 | 0 | 167,551 |
| 1997 | — | — | — | 0 | — | — | — | 213,848 | −19.8% | 70 | < 0.01% | 1,020.8 | 213,848 | 0 | 213,848 |
| 1996 | — | — | — | 0 | — | — | — | 266,759 | +11.5% | 67 | 0.01% | 1,289.4 | 266,759 | 0 | 266,759 |
| 1995 | — | — | — | 0 | — | — | — | 239,201 | −30.9% | 69 | < 0.01% | 1,171.9 | 239,201 | 0 | 239,201 |
| 1994 | — | — | — | 0 | — | — | — | 346,125 | +13.4% | 67 | 0.01% | 1,719.5 | 346,125 | 0 | 346,125 |
| 1993 | — | — | — | 0 | — | — | — | 305,340 | −0.36% | 70 | 0.01% | 1,537.5 | 305,340 | 0 | 305,340 |
| 1992 | — | — | — | 0 | — | — | — | 306,442 | +36.9% | 66 | 0.01% | 1,563.6 | 306,442 | 0 | 306,442 |
| 1991 | — | — | — | 0 | — | — | — | 223,769 | +3% | 57 | < 0.01% | 1,157 | 223,769 | 0 | 223,769 |
| 1990 | — | — | — | 0 | — | — | — | 217,155 | +0% | 56 | < 0.01% | 1,137.8 | 217,155 | 0 | 217,155 |
| 1989 | — | — | — | 0 | — | — | — | 217,155 | +19.4% | 57 | < 0.01% | 1,150.9 | 217,155 | 0 | 217,155 |
| 1988 | — | — | — | 0 | — | — | — | 181,881 | −21.1% | 58 | < 0.01% | 973.2 | 181,881 | 0 | 181,881 |
| 1987 | — | — | — | 0 | — | — | — | 230,383 | +14.2% | 55 | < 0.01% | 1,242.7 | 230,383 | 0 | 230,383 |
| 1986 | — | — | — | 0 | — | — | — | 201,723 | −8% | 55 | < 0.01% | 1,095.1 | 201,723 | 0 | 201,723 |
| 1985 | — | — | — | 0 | — | — | — | 219,360 | +2.6% | 54 | < 0.01% | 1,196.5 | 219,360 | 0 | 219,360 |
| 1984 | — | — | — | 0 | — | — | — | 213,848 | +16.2% | 54 | < 0.01% | 1,168.9 | 208,337 | 0 | 208,337 |
| 1983 | — | — | — | 0 | — | — | — | 184,086 | −41.6% | 55 | < 0.01% | 1,007.3 | 184,086 | 0 | 184,086 |
| 1982 | — | — | — | 0 | — | — | — | 315,261 | −10.6% | 52 | 0.01% | 1,727.2 | 311,954 | 0 | 311,954 |
| 1981 | — | — | — | 0 | — | — | — | 352,739 | −14.4% | 48 | 0.01% | 1,935.5 | 334,000 | 0 | 334,000 |
| 1980 | — | — | — | 0 | — | — | — | 412,264 | — | 46 | 0.01% | 2,267 | 432,106 | 0 | 432,106 |