| 2000 | 2012 | |
|---|---|---|
| Belarus | 4.0 | 5.0 |
| Denmark | 4.0 | 6.0 |
| Azerbaijan | 36.0 | 24.0 |
| Italy | 5.0 | 5.0 |
| North Macedonia | 7.0 | 4.0 |
| Slovakia | 6.0 | 6.0 |
| Kazakhstan | 17.0 | 12.0 |
| Mongolia | 33.0 | 20.0 |
| Georgia | 13.0 | 9.0 |
| Iceland | 6.0 | 4.0 |
| Belgium | 6.0 | 7.0 |
| Estonia | 5.0 | 4.0 |
| Sweden | 5.0 | 5.0 |
| Cyprus | 5.0 | 4.0 |
| Croatia | 5.0 | 2.0 |
| Germany | 4.0 | 5.0 |
| Montenegro | 7.0 | 4.0 |
| Armenia | 12.0 | 8.0 |
| Bosnia and Herzegovina | 6.0 | 4.0 |
| Norway | 6.0 | 6.0 |
| Turkey | 27.0 | 14.0 |
| Bulgaria | 6.0 | 5.0 |
| Kyrgyzstan | 32.0 | 23.0 |
| Luxembourg | 5.0 | 5.0 |
| Spain | 6.0 | 6.0 |
| Lithuania | 5.0 | 4.0 |
| Uzbekistan | 41.0 | 28.0 |
| Albania | 17.0 | 9.0 |
| Ireland | 8.0 | 6.0 |
| Czech Republic | 4.0 | 5.0 |
| Austria | 3.0 | 3.0 |
| Netherlands | 7.0 | 6.0 |
| Switzerland | 6.0 | 5.0 |
| Russian Federation | 9.0 | 10.0 |
| Serbia | 5.0 | 3.0 |
| France | 6.0 | 6.0 |
| Finland | 6.0 | 2.0 |
| Romania | 12.0 | 7.0 |
| Latvia | 5.0 | 4.0 |
| Slovenia | 5.0 | 3.0 |
| Turkmenistan | 38.0 | 24.0 |
| Canada | 5.0 | 7.0 |
| Poland | 5.0 | 4.0 |
| Portugal | 8.0 | 10.0 |
| Malta | 8.0 | 5.0 |
| United Kingdom | 10.0 | 7.0 |
| Ukraine | 8.0 | 10.0 |
| United States of America | 8.0 | 8.0 |
| Republic of Moldova | 11.0 | 8.0 |
| Hungary | 3.0 | 3.0 |
| Greece | 5.0 | 6.0 |
| Tajikistan | 58.0 | 49.0 |