77% (1964)

80% (1960)

74% (1968)

68% (1962)

0% (1953)

80% (1953)

71% (1999)

57% (1988)

67% (1970)

56% (1972)

80% (1992)

71% (1952)

74% (1959)

67% (2004)

68% (1955)

62% (1993)

50% (1999)

50% (2010)

80% (2000)

49% (1979)