- 1957 AE – 35 seats (3rd)
- 1962 AE – 27 seats (3rd)
- 1967 AE – 41 seats (3rd)
- 1972 AE – 20 seats (3rd)
- 1978 AE – 10 seats (3rd)
- 1983 AE – 22 seats (3rd)
- 1985 AE – 13 seats (3rd)
- 1989 AE – 12 seats (3rd)
- 1994 AE – 18 seats (4th)
- 2004 AE – 13 seats (4th)
- 2008 AE – 6 seats (4th)
- 2013 AE – 9 seats (4th)
- 2018 AE – 1 seat (4th)