- 1st – 13th May 1952
- 2nd – 10th May 1957
- 3rd – 16th April 1962
- 4th – 16th March 1967
- 5th – 19th March 1971
- 6th – 25th March 1977
- 7th – 21st January 1980
- 8th – 15th January 1985
- 9th – 18th December 1989
- 10th – 9th July 1991
- 11th – 22nd May 1996
- 12th – 23rd March 1998
- 13th – 20th October 1999
- 14th – 2nd June 2004
- 15th – 1st June 2009
- 16th – 4th June 2014
- 17th – 17th June 2019
