71% (2004)

67% (2010)

59% (2016)

67% (2019)

67% (2020)

55% (2006)

64% (1998)

70% (1969)

61% (1933)

71% (1962)

69% (2014)

56% (2004)

67% (1994)

70% (2013)

65% (2007)

66% (2020)

66% (2021)

63% (2015)

55% (2002)

61% (1995)