85% (1957)

76% (2013)

76% (1997)

64% (2008)

68% (1975)

80% (2005)

75% (1947)

81% (2006)

77% (1997)

82% (2014)

70% (2002)

63% (2003)

51% (1966)

73% (2011)

60% (1991)

85% (2014)

100% (1978)

50% (2006)

80% (2009)

44% (2023)