73% (2010)

67% (1994)

62% (2014)

82% (2006)

60% (2016)

69% (2015)

67% (2008)

65% (1996)

85% (1984)

76% (2008)

59% (2016)

60% (2015)

78% (2002)

64% (1987)

64% (2010)

72% (2009)

67% (2009)

67% (2005)

65% (2009)

64% (2020)