47% (2009)

70% (2018)

68% (2017)

66% (2016)

64% (2016)

57% (2018)

51% (2010)

57% (1990)

55% (2011)

67% (1948)

50% (2005)

63% (2016)

56% (2012)

68% (1985)

44% (2009)

64% (1981)

70% (1947)

60% (1992)

54% (2008)

58% (2002)