61% (2001)

37% (2004)

68% (2003)

73% (1991)

45% (2009)

75% (1951)

73% (1990)

72% (1993)

76% (2004)

67% (2016)

59% (2002)

59% (2011)

62% (2006)

61% (2000)

58% (1998)

59% (2009)

77% (1948)

58% (1972)

62% (1980)

69% (1993)