69% (1946)

59% (1948)

60% (2013)

51% (2000)

60% (2009)

39% (2015)

60% (2013)

59% (1993)

61% (2013)

56% (1993)

65% (2004)

29% (2008)

52% (2019)

50% (1961)

50% (2003)

54% (1981)

69% (1984)

47% (2018)

58% (2011)

62% (2010)