0% (1976)

0% (1968)

0% (1975)

0% (1969)

30% (1972)

60% (1960)

0% (1964)

50% (1970)

50% (1976)

70% (1960)

0% (1964)

0% (1963)

70% (1967)

0% (1964)

0% (1966)

0% (1967)

70% (1965)

40% (1972)

10% (1975)

0% (1971)