32nd: New Delhi, 2018
31st: London, 2016
30th: Bangkok, 2015
29th: Cape Town, 2012
28th: Seoul, 2008
27th: Berlin, 2004
26th: Buenos Aires, 2000
25th: Barcelona, 1996
24th: New Delhi, 1992
23rd: London, 1988
22nd: Mexico City, 1984
21st: Stockholm, 1980
20th: Kyoto/Tokyo, 1976
19th: Paris, 1972
18th: Amsterdam, 1968
17th: Washington, 1965
16th: Barcelona, 1962
15th: Vienna, 1959
14th: Florence, 1956
13th: Zurich, 1954
12th: Leipzig, 1938
11th: London, 1936
10th: Brussels, 1933
9th: Paris, 1931
8th: Budapest, 1913
7th: Amsterdam, 1910
6th: Madrid, 1908
5th: Milan, 1906
4th: Leipzig, 1901
3rd: London, 1899
2nd: Brussels, 1897
1st: Paris, 1896