0% (1963)

50% (1973)

59% (1993)

80% (1966)

90% (2007)

82% (2002)

53% (1961)

62% (1982)

67% (2005)

35% (1974)

60% (1951)

70% (1969)

60% (1948)

50% (1962)

0% (1962)

40% (1979)

50% (1959)

0% (1984)

57% (1973)

70% (1951)