63% (2003)

43% (2000)

61% (1996)

40% (2002)

34% (2002)

47% (2001)

41% (1999)

48% (2003)

46% (2003)

32% (2002)

69% (2000)

38% (2004)

59% (2003)

46% (2002)

35% (2003)

41% (2002)

85% (2002)

58% (2000)

85% (2001)

57% (2002)