76% (2002)

61% (2008)

58% (1999)

54% (2002)

68% (2002)

52% (2001)

62% (2002)

64% (1998)

68% (2004)

63% (2007)

56% (1999)

61% (1999)

66% (2006)

55% (2009)

61% (1999)

61% (2001)

64% (2000)

60% (2001)

39% (2008)

0% (1999)