64% (1977)

60% (1960)

47% (1984)

48% (1982)

0% (1984)

20% (1981)

70% (1961)

48% (1980)

70% (1974)

80% (1981)

30% (1986)

38% (1978)

55% (1955)

0% (1982)

45% (1978)

62% (1929)

0% (1978)

0% (1990)

80% (1970)

47% (1990)