0% (1978)

65% (1981)

52% (1971)

70% (1991)

59% (1967)

50% (1974)

70% (1964)

0% (1986)

57% (1980)

0% (1977)

64% (1992)

58% (1971)

58% (1979)

64% (1970)

0% (1990)

63% (1971)

50% (1981)

48% (2002)

68% (1972)

42% (1982)