76% (2021)

63% (2011)

64% (1997)

74% (2003)

49% (2004)

34% (2014)

71% (1992)

59% (2010)

59% (2009)

65% (2016)

36% (2011)

48% (2013)

57% (2013)

60% (2005)

58% (1994)

64% (2009)

63% (2014)

50% (2011)

41% (2010)

73% (2008)