90% (1978)

56% (1978)

46% (1973)

62% (1978)

50% (1977)

55% (1980)

20% (1993)

55% (1978)

20% (1973)

48% (1971)

69% (1971)

0% (1972)

60% (1986)

55% (1993)

56% (1994)