79% (2007)

74% (2015)

70% (2000)

51% (2016)

65% (2017)

69% (2001)

58% (2008)

67% (2015)

65% (2011)

75% (1987)

46% (2003)

66% (2002)

57% (1966)

70% (2004)

62% (2019)

67% (2014)

66% (2005)

50% (1969)

64% (1984)

48% (1992)