73% (2003)

67% (2019)

69% (2003)

60% (2006)

68% (1978)

57% (1987)

51% (2013)

70% (1971)

58% (1991)

71% (2017)

62% (2013)

55% (2008)

78% (2014)

56% (1999)

72% (2008)

59% (2018)

65% (2008)

59% (2013)

67% (2014)

62% (2019)