0% (1979)

0% (1981)

0% (1970)

35% (1980)

60% (1965)

30% (1987)

60% (1983)

80% (1959)

60% (1981)

0% (1982)

0% (1986)

58% (1964)

0% (1980)

60% (1982)

0% (1985)

50% (1988)

40% (1964)

50% (1978)

0% (1990)

0% (1966)