71% (2010)

76% (2007)

70% (2005)

79% (2011)

59% (2016)

68% (1990)

80% (2019)

72% (1996)

42% (2006)

73% (2011)

62% (2012)

84% (2016)

50% (2007)

84% (2018)

77% (1992)

0% (1984)

73% (2009)

64% (2009)

64% (2016)

48% (2009)