69% (2024)

80% (2004)

75% (2014)

69% (2018)

74% (1971)

69% (2006)

78% (1995)

70% (2012)

72% (2016)

72% (1985)

69% (1968)

78% (2003)

80% (1992)

63% (2011)

62% (2010)

76% (1979)

64% (1997)

59% (1990)

75% (1993)

80% (2008)