78% (1998)

62% (2001)

41% (2006)

60% (2001)

67% (2005)

68% (2002)

59% (2002)

75% (2001)

45% (1999)

66% (2000)

57% (2002)

54% (1999)

67% (2006)

48% (2000)

37% (2000)

60% (2001)

69% (2001)

49% (2001)

56% (2003)

61% (1999)