76% (2013)

56% (2012)

77% (2008)

53% (2011)

70% (2012)

72% (2005)

68% (2010)

61% (2006)

65% (2010)

43% (2014)

72% (2012)

56% (2023)

66% (2010)

63% (2009)

61% (2023)

57% (2013)

56% (2022)

63% (2005)

0% (1970)