Members 1953-2012
- 1953: 5 - Belgium, France, Germany, Italy (not in 1967-1968, readmitted in 1969), Spain
- 1956: 6 - Netherlands (not in 1967-1968, readmitted in 1969)
- 1957: 8 - Sweden, Tunisia (till 1962)
- 1960: 9 - Great Britain
- 1962: 8 - (Tunisia excluded)
- 1967: 6 - Italy & Netherlands form a new federation
- 1969: 8 - Italy & Netherlands readmitted
- 1971: 9 - San Marino
- 1979: 10 - Denmark
- 1981: 11 - Finland
- 1982: 12 - Switzerland
- 1983: 15 - Malta, Yugoslavia (till 1992), Austria
- 1988: 16 - USSR (till 1992)
- 1989: 17 - Czechoslovakia (till 1993)
- 1990: 18 - Poland
- 1991: 19 - Romania
- 1992: 25 - Bulgaria, Croatia, Estonia, Georgia, Lithuania, Russia, Slovenia, Ukraine
- 1993: 29 - Czech Republic, Hungary, Moldova, Norway, Slovakia
- 1994: 33 - Armenia (till 2011), Belarus, Ireland, Portugal
- 1995: 34 - Israel
- 1996: 35 - Serbia(-Montenegro)
- 1999: 37 - Cyprus, Greece
- 2001: 38 - Turkey
- 2009: 39 - Latvia
- 2011: 38 - (Armenia excluded)
38 member countries in total
Status: March 2012
