64% (1999)

81% (2000)

69% (2001)

53% (2002)

65% (2004)

61% (2002)

59% (2001)

60% (1998)

67% (1999)

44% (2002)

63% (2000)

58% (2001)

43% (2001)

43% (1998)

46% (2000)

56% (1999)

60% (2000)

43% (2000)

58% (2004)

54% (2004)