81% (1962)

0% (1961)

65% (1972)

42% (1982)

63% (1956)

35% (1971)

48% (1987)

30% (1991)

51% (1973)

50% (1960)

75% (1963)

0% (1969)

40% (1972)

53% (1978)

60% (1968)

51% (1974)

50% (1970)

60% (1957)

55% (1970)

60% (1979)