40% (1990)

0% (1973)

10% (1990)

30% (1978)

10% (1991)

60% (1956)

60% (1964)

55% (1979)

64% (1972)

90% (1982)

40% (1962)

0% (1990)

50% (1984)

59% (1981)

63% (1984)

30% (1976)

50% (1975)

50% (1983)

60% (1971)

0% (1975)