57% (2000)

66% (2001)

73% (1999)

56% (2003)

51% (2002)

51% (2001)

67% (1999)

46% (2005)

58% (2001)

52% (2000)

70% (2006)

40% (2003)

57% (2004)

58% (2001)

37% (2002)

59% (2004)

33% (2000)

61% (2001)

63% (2001)

53% (2003)