55% (1968)

63% (1963)

0% (1958)

42% (1985)

67% (1979)

0% (1992)

43% (1986)

50% (1981)

0% (1976)

0% (1967)

70% (1955)

53% (1963)

60% (1961)

70% (1967)

35% (1987)

50% (1979)

66% (1961)

70% (1983)

0% (1983)

57% (1986)