58% (2016)

68% (1973)

48% (2001)

46% (2006)

62% (2009)

66% (2010)

63% (1978)

67% (2014)

63% (1970)

58% (1975)

51% (2008)

65% (2014)

59% (1985)

51% (2019)

52% (2014)

57% (1970)

60% (2010)

59% (2007)

58% (2013)

50% (2005)