73% (1999)

65% (2001)

67% (2006)

69% (2006)

51% (2001)

33% (2000)

52% (2000)

51% (2002)

57% (2000)

57% (2004)

62% (2004)

57% (2003)

49% (2005)

63% (2001)

58% (2001)

46% (2005)

39% (2003)

58% (2004)

58% (2002)

55% (2002)