73% (1976)

64% (1981)

61% (1974)

74% (1991)

41% (2006)

69% (1983)

68% (1974)

60% (1972)

71% (1999)

64% (1980)

64% (1978)

64% (1989)

71% (1999)

69% (1988)

61% (1976)

69% (2019)

52% (1982)

62% (1977)

66% (2001)

61% (1975)