72% (2015)

62% (2000)

68% (2015)

70% (2014)

56% (2013)

57% (2011)

73% (2014)

68% (2004)

60% (2008)

57% (2003)

63% (2000)

69% (1998)

67% (2012)

58% (2009)

62% (2001)

65% (2003)

75% (2003)

53% (2012)

50% (2010)

66% (2009)