66% (1983)

57% (1971)

59% (1971)

0% (1972)

61% (1970)

61% (1970)

10% (1978)

74% (1986)

0% (1979)

0% (1980)

66% (1982)

57% (1977)

43% (1983)

10% (1977)

42% (1981)

50% (1978)

0% (1980)

56% (1971)

0% (1971)

60% (1970)