69% (2020)

69% (2002)

58% (2010)

58% (1999)

65% (2015)

64% (2004)

63% (1990)

62% (2011)

60% (2017)

63% (1975)

54% (2007)

65% (2015)

70% (2001)

50% (1968)

73% (1955)

78% (2014)

67% (2002)

71% (1987)

64% (2016)

66% (2008)