0% (1957)

0% (1981)

0% (1964)

45% (1980)

0% (1966)

60% (1968)

60% (1977)

30% (1965)

50% (1986)

50% (1989)

30% (1962)

20% (1976)

55% (1965)

35% (1974)

20% (1980)

70% (1961)

40% (1981)

35% (1983)

40% (1962)

70% (1975)