| 2000 | 2012 | |
|---|---|---|
| Russian Federation | 23.0 | 15.0 |
| Republic of Korea | 19.0 | 20.0 |
| France | 13.0 | 10.0 |
| Canada | 12.0 | 11.0 |
| Italy | 8.0 | 6.0 |
| India | 13.0 | 15.0 |
| Brazil | 18.0 | 21.0 |
| China | 17.0 | 13.0 |
| Australia | 13.0 | 11.0 |
| Indonesia | 10.0 | 10.0 |
| Argentina | 14.0 | 13.0 |
| Germany | 8.0 | 6.0 |
| United Kingdom of Great Britain and Northern Ireland | 6.0 | 6.0 |
| Saudi Arabia | 16.0 | 16.0 |
| United States of America | 13.0 | 12.0 |
| Mexico | 18.0 | 21.0 |
| South Africa | 11.0 | 10.0 |
| Turkey | 14.0 | 13.0 |
| Japan | 13.0 | 13.0 |