72% (2010)

60% (2009)

56% (2003)

57% (2014)

56% (2008)

47% (2003)

60% (2006)

65% (2004)

58% (2002)

45% (2007)

56% (2005)

64% (1996)

59% (2004)

49% (2004)

67% (2007)

80% (2006)

68% (2008)

70% (2005)

46% (2011)

60% (2010)