70% (1987)

50% (1975)

50% (1976)

60% (1976)

47% (1973)

47% (1980)

68% (1988)

43% (1975)

42% (1975)

54% (1978)

69% (1981)

50% (1971)

50% (1979)

20% (1977)

40% (1977)

35% (2010)

0% (1974)

0% (1976)

80% (1965)

50% (1968)