69% (1970)

60% (2006)

72% (1975)

75% (1934)

68% (2013)

69% (1983)

68% (2023)

76% (2017)

70% (2021)

67% (2015)

67% (1983)

63% (2023)

62% (2022)

63% (2004)

55% (2008)

50% (2009)

62% (2008)

47% (2014)

40% (1987)

69% (1994)