62% (2013)

64% (1992)

88% (2006)

92% (1993)

74% (1983)

67% (2001)

50% (1993)

67% (2005)

58% (1979)

63% (1978)

62% (1953)

52% (2006)

73% (1964)

45% (1993)

76% (1962)

39% (1988)

0% (2002)

74% (2004)

35% (2003)

78% (1994)