69% (2024)

80% (2004)

75% (2014)

74% (1971)

69% (2018)

69% (2006)

78% (1995)

69% (1968)

64% (1997)

72% (1985)

70% (2012)

63% (2011)

75% (1993)

62% (2010)

80% (1992)

59% (1990)

76% (1979)

55% (2018)

78% (2003)

72% (2016)