74% (2001)

71% (2003)

68% (2003)

75% (2001)

66% (2000)

58% (2002)

78% (2003)

61% (2002)

60% (2002)

63% (2001)

54% (2001)

65% (1999)

56% (2001)

62% (2001)

57% (2001)

57% (2003)

58% (2000)

58% (2001)

67% (2001)

57% (2000)