60% (1975)

70% (1982)

64% (1986)

70% (1968)

58% (2021)

66% (2021)

59% (1993)

57% (2022)

60% (1965)

59% (1992)

60% (1964)

54% (1981)

45% (2001)

59% (1994)

67% (2012)

52% (1990)

67% (1992)

61% (1989)

60% (1993)

54% (1995)