75% (1982)

80% (1997)

60% (1991)

74% (1965)

60% (1962)

68% (1987)

69% (2014)

55% (1979)

73% (1985)

62% (1987)

67% (2008)

40% (1956)

30% (2000)

77% (2000)

30% (1950)

62% (2017)

69% (1976)

60% (1967)

50% (1989)

65% (1975)