67% (2009)

67% (2002)

72% (2023)

70% (2019)

65% (2016)

70% (1995)

52% (1971)

63% (1959)

70% (1956)

67% (1966)

72% (1973)

52% (1959)

56% (1967)

53% (2002)

56% (1972)

55% (1959)

57% (1965)

39% (2014)

53% (1974)

50% (1961)