70% (1975)

0% (1972)

69% (1959)

70% (1958)

61% (1961)

0% (1968)

64% (1969)

69% (1967)

0% (1974)

60% (1972)

80% (1972)

70% (1970)

80% (1969)

50% (1968)

100% (1960)

0% (1961)