54% (1999)

77% (2002)

51% (2001)

64% (1998)

61% (2002)

68% (2004)

61% (2001)

54% (2002)

65% (2000)

65% (2006)

68% (2002)

60% (2001)

63% (2007)

55% (2009)

62% (1999)

58% (1999)

61% (1999)

18% (2008)

44% (2002)

52% (2000)