74% (1999)

70% (2000)

57% (1999)

45% (2001)

60% (2000)

50% (2001)

28% (2003)

40% (2003)

30% (2003)

48% (2001)

26% (2004)

50% (2000)

53% (1999)

45% (2002)

50% (2000)

46% (2003)

10% (2001)

44% (2002)

47% (2003)

50% (2001)