66% (1950)

60% (2021)

56% (2019)

58% (2015)

68% (1968)

69% (1949)

52% (1971)

72% (1947)

52% (1981)

54% (1998)

0% (1970)

59% (2000)

55% (2002)

56% (1970)

71% (2018)

54% (2005)

68% (2005)

70% (1975)

56% (2020)

52% (1987)