72% (1982)

72% (1970)

67% (1972)

50% (1980)

69% (1974)

37% (1969)

73% (1979)

73% (1983)

72% (1971)

0% (1974)

55% (1968)

0% (1969)

0% (2009)

0% (1971)

0% (1975)