0% (1982)

46% (1989)

50% (1990)

40% (1965)

0% (1967)

60% (1959)

55% (1977)

59% (1981)

85% (1975)

54% (1966)

70% (1974)

51% (1930)

64% (1978)

45% (1973)

55% (1986)

60% (1987)

42% (1972)

57% (1942)

40% (1949)

30% (1971)