56% (1984)

60% (2018)

56% (2003)

29% (1966)

50% (1978)

56% (1988)

49% (1970)

65% (1969)

44% (1980)

43% (1974)

33% (1976)

50% (1985)

52% (1988)

56% (1982)

65% (1973)

43% (1988)

56% (2010)

64% (1979)

56% (1975)

0% (1979)