44% (2000)

73% (2003)

62% (1996)

54% (1998)

53% (2001)

65% (2003)

61% (2000)

68% (2003)

61% (1998)

37% (2002)

52% (1994)

68% (1996)

60% (2004)

61% (1997)

48% (2002)

58% (1997)

57% (1997)

35% (1995)

34% (1994)

43% (1997)