53% (2005)

63% (2002)

68% (1962)

70% (2010)

68% (2005)

68% (1988)

71% (1998)

75% (1966)

70% (1980)

64% (2015)

62% (1985)

80% (2009)

68% (1994)

65% (1996)

71% (1990)

67% (2009)

52% (1988)

63% (2014)

58% (2002)

73% (2016)