30% (1968)

10% (1973)

50% (1983)

20% (1978)

70% (1974)

0% (1965)

42% (1976)

0% (1955)

46% (1984)

43% (1981)

0% (1979)

30% (1981)

0% (1962)

20% (1979)

47% (2010)

0% (1980)

49% (1969)

35% (1986)

35% (1986)

58% (2009)