42% (1974)

0% (1967)

48% (1976)

50% (1981)

43% (1973)

75% (1989)

0% (1984)

0% (1994)

39% (1983)

10% (1983)

45% (1977)

54% (1981)

30% (1978)

54% (1977)

37% (1978)

0% (1970)

58% (1969)

42% (1969)

34% (1979)

0% (1989)