63% (2011)

72% (1997)

71% (2006)

71% (1976)

63% (1984)

61% (2003)

69% (1979)

74% (2018)

62% (2018)

74% (2013)

68% (2011)

66% (1981)

72% (2009)

76% (2008)

68% (2002)

59% (1977)

62% (1966)

59% (1999)

62% (2002)

62% (2023)