47% (1966)

30% (1970)

29% (1990)

70% (1961)

62% (1960)

80% (1956)

0% (1986)

80% (1961)

48% (1950)

55% (1982)

58% (1981)

80% (1981)

60% (1984)

0% (1955)

60% (1970)

54% (1980)

0% (1992)

0% (1986)

68% (1983)

67% (1964)