71% (1999)

54% (2009)

65% (2018)

60% (2021)

55% (2007)

52% (1984)

71% (1952)

62% (1952)

65% (1982)

51% (2000)

49% (2011)

70% (1959)

64% (1951)

57% (1983)

55% (1949)

60% (1982)

62% (1964)

47% (1984)

48% (1984)

68% (1952)