68% (1992)

80% (1997)

72% (2014)

76% (2009)

61% (1996)

78% (1988)

82% (1979)

82% (1977)

74% (2002)

85% (1999)

53% (1997)

71% (2018)

77% (2016)

77% (2015)

75% (2018)

63% (2014)

74% (2008)

68% (2004)

68% (1994)

76% (1987)