77% (1964)

73% (1952)

80% (1960)

74% (1968)

70% (2003)

40% (1973)

71% (1999)

69% (1970)

80% (1992)

70% (1995)

48% (1972)

70% (1956)

68% (1962)

0% (1956)

55% (1973)

63% (1999)

0% (1980)

62% (1997)

56% (1972)

68% (1955)