| Country | 2010 | 2011 | 2012 |
|---|---|---|---|
| World: Total | 60795 | 74741 | 74842 |
| Austria | 975 | 861 | 706 |
| Bolivia | 1203 | 1418 | 1500 |
| Canada | 364 | 2368 | 2505 |
| China | 51287 | 61802 | 62000 |
| Korea, Dem. Peoples Rep. of | 100 | 100 | 100 |
| Peru | 716 | 546 | 365 |
| Portugal | 799 | 818 | 763 |
| Russia( | 3000 | 4200 | 4200 |
| Rwanda | 630 | 950 | 1105 |
| Spain | 303 | 425 | 496 |
| Thailand | 481 | 229 | 107 |
| Uzbekistan | 300 | 300 | 300 |
| Other countries | 637 | 724 | 695 |
| Country | Reserves |
|---|---|
| World : Total | 3500 |
| Austria | 10 |
| Bolivia | 53 |
| Canada | 290 |
| China | 1900 |
| Portugal | 4 |
| Russia | 250 |
| USA | 140 |
| Other Countries | 853 |