61% (2011)

64% (2007)

70% (2015)

62% (2015)

71% (2012)

63% (2012)

0% (2015)

65% (2015)

54% (1981)

88% (2008)

67% (2010)

74% (2003)

44% (1990)

63% (2003)

75% (2006)

52% (2005)

0% (2002)

90% (2004)

59% (2012)

80% (2014)