35% (1986)

51% (1972)

42% (1978)

58% (2009)

0% (1972)

20% (1980)

35% (1976)

0% (1971)

20% (1978)

69% (1963)

64% (1965)

52% (1925)

39% (2010)

0% (1961)

45% (1979)

0% (1980)

67% (1968)

64% (1966)

48% (2000)

56% (1992)