0.344685 9.6843% 1980 6.035218 0.165694 9.0330% 1979 3.344704 0.298980 8.8650% 1978 8.494160 0.117728 7.2813% 1977 2.109732 0.473994 6.6558% 1976 4.322025 0.231373 6.4073% 1975 8.471721 0.118040 9.8159% 1974 1.747561 0.572226 9.0909% 1973 0.526594 1.898996 6.4509% 1972 1.795343 0.556996 4.7304% 1971 0.338827 2.951359 5.7132% 1970
stipple