0% (2000)

53% (1999)

0% (2001)

0% (2006)

32% (1982)

38% (1991)

40% (1978)

70% (1979)

40% (2002)

60% (1996)

52% (1980)

50% (1997)

60% (1997)

40% (2000)

70% (1977)

40% (2005)

0% (1978)

76% (1989)

0% (1977)

100% (1987)