76% (2020)

72% (1967)

79% (2000)

72% (1986)

0% (1975)

47% (1981)

55% (1983)

60% (1992)

60% (1993)

70% (1994)

35% (1974)

60% (1974)

69% (1971)

45% (1978)

67% (1986)

68% (1986)

63% (2010)

62% (1957)

54% (1956)

47% (1976)