82% (2005)

85% (2018)

83% (2005)

85% (2017)

80% (2004)

80% (2009)

62% (1990)

58% (2016)

81% (2001)

74% (2011)

75% (2013)

58% (1988)

81% (2005)

77% (2016)

82% (2017)

82% (2018)

82% (2015)

79% (2014)

72% (2016)

72% (2012)