0% (1981)

42% (1982)

57% (1964)

57% (1968)

0% (1987)

57% (1984)

0% (1988)

54% (1958)

0% (1980)

65% (1971)

49% (1989)

70% (1978)

50% (1967)

45% (1986)

0% (1973)

50% (1972)

77% (1998)

55% (1995)

31% (1971)

56% (2002)