70% (1979)

52% (2019)

77% (2018)

63% (2018)

66% (1996)

67% (2016)

59% (2010)

58% (2005)

68% (2000)

55% (2006)

62% (2014)

58% (2011)

62% (1978)

59% (2018)

79% (2015)

59% (2010)

61% (2015)

72% (2009)

71% (2016)

59% (2019)