67% (2009)

65% (1984)

69% (2006)

62% (2004)

70% (2007)

54% (2002)

68% (2008)

65% (1997)

61% (1936)

59% (2020)

69% (2020)

64% (2019)

72% (2017)

73% (2016)

52% (2014)

58% (2014)

50% (2013)

54% (2012)

41% (2011)

64% (2010)