65% (1979)

40% (1990)

10% (1962)

44% (1968)

40% (1973)

66% (1971)

35% (1975)

43% (1971)

10% (1979)

57% (1961)

0% (1964)

55% (1973)

47% (1965)

0% (1963)

42% (1971)

30% (1987)

5% (1994)

0% (1969)

50% (1965)