65% (1990)

73% (1974)

61% (1972)

77% (1982)

68% (1966)

63% (1996)

65% (1992)

63% (1992)

50% (2002)

68% (1979)

61% (1984)

71% (1992)

70% (1991)

62% (2013)

59% (1976)

57% (1972)

67% (2004)

71% (1981)

62% (1978)

71% (2005)