55% (1973)

67% (1988)

0% (2004)

52% (1983)

38% (1969)

30% (1979)

60% (1969)

48% (1982)

10% (1981)

0% (1986)

0% (1994)

50% (1966)

50% (1988)

20% (1970)

0% (1980)

10% (1984)

0% (1976)

58% (1990)

0% (1968)

57% (1973)