46% (2008)

67% (1980)

56% (1984)

60% (2005)

68% (2020)

52% (1985)

70% (1967)

55% (2011)

74% (1992)

72% (1961)

59% (1967)

69% (1963)

63% (2009)

52% (2003)

68% (2013)

57% (1974)

45% (2004)

66% (2001)

75% (1976)

81% (1956)