74% (2015)

72% (1998)

78% (2010)

75% (2009)

71% (1997)

68% (2015)

64% (2023)

77% (1989)

79% (2016)

66% (2006)

73% (2003)

69% (2015)

68% (2011)

68% (2013)

71% (1988)

70% (2011)

62% (1997)

72% (2016)

71% (2011)

70% (2010)