0% (1955)

70% (1969)

80% (1978)

60% (1971)

60% (1974)

50% (1989)

35% (1986)

95% (1981)

0% (1974)

0% (1971)

30% (1972)

80% (1959)

50% (1937)

55% (1990)

37% (1979)

55% (1965)

70% (1966)

60% (1980)

75% (1946)

90% (1980)