70% (2024)

83% (1999)

76% (1987)

71% (2003)

78% (1988)

73% (1987)

68% (2003)

63% (1990)

79% (2006)

73% (2009)

69% (2012)

67% (2009)

70% (1990)

68% (1993)

68% (2010)

63% (2001)

63% (2008)

72% (2011)

72% (2016)

67% (1985)