60% (1988)

62% (2020)

56% (2019)

68% (2012)

63% (1999)

70% (2015)

60% (2006)

66% (2008)

60% (1997)

58% (2008)

58% (1981)

50% (1971)

61% (2007)

70% (2023)

69% (2013)

77% (1941)

66% (2002)

63% (2009)

66% (1986)

68% (1988)