56% (1979)

69% (1968)

74% (1983)

71% (1969)

73% (2004)

75% (1986)

75% (1997)

56% (1992)

55% (1971)

48% (2013)

81% (1982)

65% (1999)

63% (2008)

64% (2001)

70% (1974)

75% (2018)

50% (1980)

80% (1995)

70% (2004)

63% (2000)