71% (1949)

71% (2020)

73% (1958)

72% (2015)

62% (2015)

61% (2011)

52% (2006)

69% (2015)

66% (2009)

63% (1993)

64% (2012)

62% (2013)

51% (2007)

68% (2003)

68% (2008)

58% (2017)

51% (1991)

60% (1988)

73% (1953)

51% (2018)