62% (2003)

68% (1948)

71% (1951)

70% (1967)

50% (1993)

72% (1954)

62% (1990)

74% (1949)

73% (1995)

52% (1994)

70% (1993)

71% (2008)

57% (2009)

65% (1995)

68% (1987)

68% (1945)

67% (1995)

67% (1999)

60% (2008)

70% (1973)