49% (2002)

61% (2002)

50% (2001)

56% (2002)

47% (2001)

55% (2001)

48% (2000)

79% (2000)

60% (2004)

59% (2003)

66% (2003)

65% (2001)

72% (1998)

10% (1998)

52% (2000)

60% (1999)

57% (2003)

70% (2000)

40% (2001)

51% (2001)