32% (1982)

60% (1996)

52% (1980)

30% (1998)

60% (1997)

37% (1998)

0% (1976)

55% (1973)

42% (1987)

47% (1974)

100% (1987)

20% (1984)

20% (2005)

0% (2004)

58% (1996)

45% (1978)

0% (1994)

30% (1994)

60% (1978)

50% (1992)