
| Reserves | Production | Consumption | Trade | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | — | — | — | 0 | — | — | — | 90,830 | −9% | 105 | < 0.01% | 59.86 | 89,618 | 0 | 89,618 |
| 2023 | 0 | — | — | 0 | — | — | — | 99,759 | −24.5% | 105 | < 0.01% | 65.05 | 95,129 | 0 | 95,129 |
| 2022 | 0 | — | — | 0 | — | — | — | 132,167 | −6% | 103 | < 0.01% | 86.95 | 132,903 | 0 | 132,903 |
| 2021 | 0 | — | — | 0 | — | — | — | 140,631 | −4.2% | 103 | < 0.01% | 93.02 | 140,631 | 0 | 140,631 |
| 2020 | 0 | — | — | 0 | — | — | — | 146,805 | −9.8% | 100 | < 0.01% | 95.67 | 146,831 | 0 | 146,831 |
| 2019 | 0 | — | — | 0 | — | — | — | 162,742 | +10.3% | 100 | < 0.01% | 104.6 | 162,742 | 0 | 162,742 |
| 2018 | 0 | — | — | 0 | — | — | — | 147,607 | −22.7% | 101 | < 0.01% | 93.61 | 151,588 | 0 | 151,588 |
| 2017 | 0 | — | — | 0 | — | — | — | 190,907 | +38.6% | 96 | < 0.01% | 119.6 | 219,843 | 0 | 219,843 |
| 2016 | 0 | — | — | 0 | — | — | — | 137,789 | −26.9% | 100 | < 0.01% | 85.11 | 132,785 | 0 | 132,785 |
| 2015 | 0 | — | — | 0 | — | — | — | 188,495 | +8.2% | 96 | < 0.01% | 114.7 | 187,356 | 0 | 187,356 |
| 2014 | 0 | — | — | 0 | — | — | — | 174,165 | −36.8% | 99 | < 0.01% | 104.2 | 160,590 | 0 | 160,590 |
| 2013 | 0 | — | — | 0 | — | — | — | 275,577 | +30.9% | 90 | < 0.01% | 161.7 | 285,508 | 0 | 285,508 |
| 2012 | 0 | — | — | 0 | — | — | — | 210,541 | −3.5% | 94 | < 0.01% | 120.9 | 189,991 | 0 | 189,991 |
| 2011 | 0 | — | — | 0 | — | — | — | 218,257 | +6.5% | 87 | < 0.01% | 122.7 | 229,545 | 0 | 229,545 |
| 2010 | 0 | — | — | 0 | — | — | — | 205,030 | +3.9% | 87 | < 0.01% | 112.9 | 200,713 | 0 | 200,713 |
| 2009 | 0 | — | — | 0 | — | — | — | 197,313 | −9.6% | 84 | < 0.01% | 106.5 | 175,050 | 0 | 175,050 |
| 2008 | 0 | — | — | 0 | — | — | — | 218,257 | +52.3% | 82 | < 0.01% | 115.5 | 168,911 | 0 | 168,911 |
| 2007 | — | — | — | 0 | — | — | — | 143,300 | −31.6% | 85 | < 0.01% | 74.41 | 165,439 | 0 | 165,439 |
| 2006 | — | — | — | 0 | — | — | — | 209,439 | +4.4% | 80 | < 0.01% | 106.8 | 190,760 | 0 | 190,760 |
| 2005 | — | — | — | 0 | — | — | — | 200,620 | +5.8% | 77 | < 0.01% | 100.6 | 184,080 | 0 | 184,080 |
| 2004 | — | — | — | 0 | — | — | — | 189,679 | −30.7% | 80 | < 0.01% | 93.75 | 203,927 | 0 | 203,927 |
| 2003 | — | — | — | 0 | — | — | — | 273,753 | +78% | 74 | < 0.01% | 133.7 | 294,317 | 0 | 294,317 |
| 2002 | — | — | — | 0 | — | — | — | 153,793 | +7.1% | 80 | < 0.01% | 74.24 | 165,347 | 0 | 165,347 |
| 2001 | — | — | — | 0 | — | — | — | 143,540 | +1.4% | 80 | < 0.01% | 68.52 | 154,323 | 0 | 154,323 |
| 2000 | — | — | — | 0 | — | — | — | 141,490 | −5.5% | 80 | < 0.01% | 66.82 | 152,119 | 0 | 152,119 |
| 1999 | — | — | — | 0 | — | — | — | 149,767 | +1.6% | 76 | < 0.01% | 70.01 | 149,767 | 0 | 149,767 |
| 1998 | — | — | — | 0 | — | — | — | 147,416 | −11.5% | 76 | < 0.01% | 68.27 | 147,416 | 0 | 147,416 |
| 1997 | — | — | — | 0 | — | — | — | 166,596 | −10.3% | 73 | < 0.01% | 76.5 | 166,596 | 0 | 166,596 |
| 1996 | — | — | — | 0 | — | — | — | 185,776 | −9.4% | 73 | < 0.01% | 84.68 | 185,776 | 0 | 185,776 |
| 1995 | — | — | — | 0 | — | — | — | 204,956 | −13.2% | 71 | < 0.01% | 92.86 | 204,956 | 0 | 204,956 |
| 1994 | — | — | — | 0 | — | — | — | 236,005 | +7.5% | 72 | < 0.01% | 106.4 | 236,005 | 0 | 236,005 |
| 1993 | — | — | — | 0 | — | — | — | 219,580 | −20% | 76 | < 0.01% | 98.73 | 219,580 | 0 | 219,580 |
| 1992 | — | — | — | 0 | — | — | — | 274,365 | — | 69 | 0.01% | 123.2 | 274,365 | 0 | 274,365 |