| Country | Number |
| Unknown | |
| Germany | |
| Switzerland | |
| Austria | |
| United States | |
| France | |
| United Kingdom | |
| Netherlands | |
| Sweden | |
| Spain | |
| Luxembourg | |
| Poland | |
| Belgium | |
| Italy | |
| Romania | |
| Canada | |
| Turkey | |
| Greece | |
| China | |
| Japan | |
| Finland | |
| Saudi Arabia | |
| Czech Republic | |
| Azerbaijan | |
| Norway | |
| Malaysia | |
| Korea, Republic of | |
| Costa Rica | |
| Hungary | |
| Kenya |