68% (2003)

66% (2006)

46% (2013)

55% (2006)

61% (2008)

74% (2004)

53% (2002)

65% (2007)

61% (2007)

60% (2005)

52% (2009)

62% (2007)

63% (2006)

61% (2011)

54% (2005)

56% (1996)

51% (2000)

45% (2002)

58% (2005)

69% (2006)