48% (1989)

35% (1968)

0% (1968)

50% (1962)

58% (1975)

54% (1987)

60% (1993)

68% (1974)

54% (1970)

73% (1977)

42% (1990)

58% (1990)

59% (1993)

45% (1991)

30% (1986)

59% (1976)

80% (1979)

47% (1996)

60% (1984)

41% (1971)