71% (2007)

70% (2005)

53% (2003)

77% (1997)

66% (2016)

63% (1990)

74% (2011)

67% (2017)

70% (2017)

80% (2018)

70% (2004)

72% (1994)

68% (2015)

57% (2018)

62% (1997)

81% (2019)

72% (2013)

64% (2003)

62% (2016)

76% (2014)