62% (1987)

75% (2007)

63% (1994)

73% (2015)

37% (1975)

61% (1989)

67% (1981)

67% (1959)

80% (1962)

35% (2002)

60% (2002)

90% (2016)

74% (1999)

60% (1968)

54% (1972)

72% (1991)

76% (1990)

76% (1971)

74% (2006)

71% (2018)