57% (2021)

56% (1988)

57% (1996)

57% (2001)

60% (1993)

56% (2016)

69% (2010)

58% (2020)

54% (2013)

70% (2007)

51% (2005)

68% (1992)

68% (1998)

66% (1942)

64% (1972)

57% (2001)

70% (2014)

39% (2004)

31% (1962)

70% (2021)