76% (2009)

46% (2002)

52% (2012)

45% (1992)

78% (2014)

68% (2010)

74% (2007)

70% (2005)

70% (2009)

69% (2008)

70% (2008)

33% (1978)

72% (2009)

68% (2001)

58% (1976)

45% (1998)

63% (1986)

62% (2014)

68% (2019)

73% (2008)