72% (2008)

80% (2010)

66% (2000)

56% (2010)

45% (2003)

75% (2008)

66% (2006)

55% (2005)

55% (2002)

71% (2013)

69% (2004)

65% (2006)

61% (2000)

60% (2012)

63% (2010)

70% (1996)

53% (2004)

53% (2005)

60% (2003)

55% (2002)