46% (1980)

63% (1976)

0% (1979)

25% (1999)

40% (1982)

30% (1995)

46% (1999)

71% (1996)

47% (1999)

0% (1980)

57% (1982)

65% (1995)

60% (1991)

10% (1984)

38% (1996)

60% (2005)

0% (1975)

0% (1977)

0% (1999)

45% (2008)