44% (2002)

70% (2000)

40% (2003)

50% (2001)

45% (2001)

59% (2003)

74% (1999)

58% (1999)

44% (2004)

49% (2001)

50% (2002)

46% (2003)

63% (1997)

60% (2000)

28% (2003)

60% (2001)

50% (2000)

30% (2003)

26% (2004)

47% (2003)