57% (1990)

90% (1973)

52% (1982)

62% (1995)

50% (1985)

50% (1983)

40% (1972)

50% (1974)

50% (1993)

72% (1966)

50% (1997)

0% (1974)

60% (1973)

0% (1992)

50% (1995)

0% (1975)

53% (1973)

40% (1982)

0% (1995)

0% (1975)