75% (2001)

71% (2003)

68% (2003)

76% (2001)

78% (2003)

64% (2002)

63% (2001)

66% (2000)

66% (1999)

54% (2001)

61% (2002)

59% (2002)

59% (2002)

61% (2002)

57% (2003)

58% (2001)

59% (2000)

68% (2001)

63% (2001)

56% (2001)