68% (2009)

52% (1978)

86% (2004)

70% (2015)

78% (2006)

74% (1993)

60% (1987)

64% (2006)

78% (1994)

76% (1999)

50% (1982)

68% (2001)

34% (2015)

80% (1989)

63% (2017)

68% (1985)

68% (1992)

65% (2018)

77% (2013)

80% (1981)