65% (1983)

54% (1974)

80% (1969)

20% (1972)

0% (1982)

70% (1977)

0% (1987)

70% (1981)

0% (1989)

0% (1990)

90% (1976)

60% (1991)

70% (1967)

60% (1985)

0% (1988)

0% (1938)

58% (1976)

42% (1986)

0% (1970)

52% (1954)