| Year | Country | Percent |
| Africa 1994 | |
| Asia 1993 | |
| North America 1988 | |
| South America 1985 | |
| South America 1990 | |
| Africa 1996 | |
| Asia 1994 | |
| Africa 1999 | |
| Europe 1993 | |
| South America 1989 | |
| Asia 1992 | |
| South America 1990 | |
| Europe 1994 | |
| Asia 1994 | |
| Europe/Asia 1992 | |
| Europe 1993 | |
| Asia 1994 | |
| Europe 1992 | |
| Asia 1994 | |
| Asia 1993 | |
| | Year | Country | Percent |
| Africa 2009 | |
| Africa 2009 | |
| Asia 1986 | |
| Africa 1986 | |
| Asia 2009 | |
| Asia 1986 | |
| South America 1999 | |
| Asia 2009 | |
| Africa 1986 | |
| Asia 1986 | |
| Asia 2009 | |
| Europe 1996 | |
| Africa 1986 | |
| Asia 2009 | |
| Caribbean 2009 | |
| Asia 2009 | |
| Asia 2009 | |
| Asia 1998 | |
| Africa 1986 | |
| Africa 2009 | |
|