59% (2009)

58% (2009)

54% (1991)

90% (1990)

40% (2006)

20% (2008)

27% (2009)

70% (2007)

50% (1991)

0% (2008)

0% (1999)

48% (2007)

53% (1996)

0% (1992)

0% (1996)

20% (2006)

52% (2005)

0% (1995)

0% (1998)

0% (1999)