61% (1996)

35% (2000)

27% (2004)

32% (2002)

48% (2003)

63% (2003)

38% (2003)

45% (1999)

44% (2002)

82% (2000)

47% (2001)

40% (2002)

59% (2003)

35% (2002)

57% (2002)

85% (2008)

47% (2002)

58% (2000)

0% (2009)

20% (1998)