66% (1974)

70% (1975)

52% (1980)

60% (1970)

68% (2023)

80% (1988)

70% (1976)

70% (2018)

63% (2012)

60% (1998)

65% (2019)

55% (1970)

50% (1969)

61% (1981)

0% (1957)

70% (1980)

10% (1969)

75% (1974)

50% (1983)

58% (1975)