68% (1962)

40% (1999)

73% (1978)

68% (1976)

72% (1990)

58% (2013)

63% (1984)

60% (1961)

50% (1980)

30% (1981)

100% (2006)

50% (1977)

50% (1960)

73% (1984)

100% (1970)

56% (1982)

50% (1980)

82% (1986)

50% (1979)

30% (1970)