| 2000 | 2012 | |
|---|---|---|
| Philippines | 13.0 | 11.0 |
| Canada | 12.0 | 11.0 |
| Indonesia | 10.0 | 10.0 |
| Japan | 13.0 | 13.0 |
| Mexico | 18.0 | 21.0 |
| Australia | 13.0 | 11.0 |
| Papua New Guinea | 11.0 | 11.0 |
| Chile | 18.0 | 15.0 |
| Peru | 12.0 | 15.0 |
| Republic of Korea | 19.0 | 20.0 |
| China | 17.0 | 13.0 |
| Brunei Darussalam | 20.0 | 15.0 |
| Malaysia | 17.0 | 16.0 |
| Russian Federation | 23.0 | 15.0 |
| United States of America | 13.0 | 12.0 |
| Thailand | 15.0 | 16.0 |
| New Zealand | 13.0 | 13.0 |
| Singapore | 10.0 | 8.0 |
| Viet Nam | 17.0 | 15.0 |