72% (1970)

60% (1966)

100% (1961)

56% (1964)

57% (1964)

61% (1962)

54% (1965)

56% (1965)

52% (1964)

20% (1965)

52% (1963)

40% (1966)

63% (1959)

57% (1963)

0% (1961)

52% (1966)

0% (1966)

56% (1964)

52% (1962)