Year

Host Nations

Participating Countries

Observer

1968

1^st

Prague, Czechoslovakia

3teams

-

1969

2^nd

Katowice, Poland

4teams

-

1970

3^rd

Budapest, Hungary

7 teams

-

1972

4^th

Moscow, Soviet Union

7 teams

-

1973

5^th

Sofia, Bulgaria

7 teams

-

1974

6^th

Bucharest, Romania

9 teams

2 teams

1975

7^th

Veszprem, Hungary

12 teams

-

1976

8^th

Halle, GDR

12 teams

-

1977

9^th

Bratislava, Czechoslovakia

12 teams

2 teams

1978

10^th

Torun, Poland

12 teams

1 teams

1979

11^th

Leningrad, Soviet Union

11 teams

-

1980

12^th

Linz, Austria

13 teams

3 teams

1981

13^th

Burgas, Bulgaria

14 teams

1 teams

1982

14^th

Stockholm, Sweden

17 teams

3 teams

1983

15^th

Timisoara, Romania

18 teams

2 teams

1984

16^th

Frankfurt, West-Germany

21 teams

-

1985

17^th

Bratislava, Czechoslovakia

22 teams

1 teams

1986

18^th

Leiden, The Netherlands

23 teams

4 teams

1987

19^th

Veszprem, Hungary

26 teams

2 teams

1988

20^th

Espoo, Finland

29 teams

-

1989

21st

Halle, GDR

26 teams

3 teams

1990

22^nd

Paris, France

28 teams

-

1991

23^rd

Lodz, Poland

30 teams

2 teams

1992

24^th

Pittsburgh, USA

33 teams

-

1993

25^th

Perugia, Italy

38 teams

-

1994

26^th

Oslo, Norway

39 teams

4 teams

1995

27^th

Beijing, China

42 teams

5 teams

1996

28^th

Moscow, Russian Federation

45 teams

3 teams

1997

29^th

Montreal, Canada

47 teams

6 teams

1998

30^th

Melbourne, Australia

47 teams

3 teams

1999

31^st

Bangkok, Thailand

52 teams

-

2000

32^nd

Copenhagen, Denmark

53 teams

-

2001

33^rd

Mumbai, India

54 teams

-

2002

34^th

Groningen, The Netherlands

57 teams

9 teams

2003

35^th

Athens, Greece

60 teams

7 teams

2004

36^th

Kiel, Germany

61 teams

7 teams

2005

37^th

Taiwan, Taipei

2006

38^th

Gyeongsan, Korea

 66 teams

 1 team

2007

39^th

Russia

2008

40^th

Hungary

2009

41^st

United Kingdom

2010

42^nd

Japan

(approved in 2006)

2011

43^rd

Turkey

(pending for application)