59% (2006)

61% (2007)

73% (2003)

58% (2007)

58% (2007)

51% (2001)

51% (2001)

59% (2003)

60% (2002)

56% (2003)

68% (2005)

53% (2006)

67% (2005)

71% (2007)

63% (2003)

52% (2006)

58% (2001)

53% (2004)

69% (2005)

57% (2005)