73% (2007)

80% (2009)

59% (2009)

72% (1995)

56% (2014)

67% (2010)

70% (2009)

64% (2013)

62% (2012)

73% (2001)

53% (2008)

63% (2012)

71% (1991)

74% (2004)

75% (2014)

53% (2012)

71% (2011)

75% (1997)

76% (2012)

66% (2009)