52% (1977)

54% (1999)

55% (2004)

39% (1990)

66% (2024)

70% (1987)

68% (2000)

61% (1980)

75% (1975)

69% (1990)

67% (1990)

77% (1982)

64% (2004)

54% (2014)

60% (1987)

0% (1967)

71% (1988)

40% (1982)

60% (2001)

58% (2018)