47% (1975)

56% (1992)

0% (1988)

20% (1993)

20% (1972)

57% (1982)

50% (1979)

48% (1984)

53% (2000)

0% (1976)

40% (1973)

0% (1974)

0% (1979)

80% (1983)

20% (1992)

0% (1971)

0% (1985)