36% (1979)

0% (1995)

44% (1986)

25% (1982)

0% (1984)

20% (1992)

45% (1972)

49% (1970)

42% (1970)

20% (1993)

25% (1980)

0% (1984)

30% (1973)

20% (1978)

42% (1990)

10% (1971)

37% (1984)

20% (1985)

20% (1967)

35% (1972)