44% (2000)

51% (2005)

70% (1998)

40% (2006)

29% (2008)

56% (2007)

41% (2004)

54% (2005)

35% (2000)

52% (2000)

47% (2005)

38% (1998)

64% (2005)

43% (2004)

68% (2000)

31% (2006)

53% (2004)

41% (2000)

47% (1998)

58% (2002)