70% (1988)

62% (2013)

53% (1973)

54% (2014)

63% (2000)

54% (1957)

66% (1972)

65% (2009)

83% (1999)

69% (2013)

58% (1979)

47% (1976)

50% (2016)

34% (1977)

59% (2019)

65% (1975)

48% (2008)

72% (1959)

62% (2023)

64% (2025)