61% (1996)

64% (2003)

27% (2004)

38% (2003)

35% (2000)

48% (2003)

70% (2004)

44% (2002)

40% (2002)

45% (1999)

59% (2003)

47% (2001)

85% (2008)

35% (2002)

58% (2000)

57% (2002)

82% (2000)

32% (2002)

20% (1998)

41% (2002)