81% (1962)

0% (1961)

48% (1987)

0% (1976)

53% (1978)

30% (1991)

50% (1966)

42% (1982)

63% (1956)

51% (1973)

40% (1972)

73% (1957)

50% (1974)

50% (1970)

57% (1958)

65% (1972)

45% (1955)

20% (1976)

75% (1963)

60% (1973)