35% (1989)

0% (1973)

60% (1982)

50% (1966)

0% (1979)

80% (1989)

58% (1974)

57% (1967)

52% (1980)

52% (1979)

58% (1971)

0% (1957)

42% (1964)

0% (1980)

55% (1977)

50% (1972)

0% (1991)

0% (1959)

60% (1987)

52% (1968)