great books ruled for figures, with perpendicular iron bars

4.602743 0.217262 2.5719% 1966 0.154239 6.483463 3.5485% 1965 0.849242 1.177521 2.7360% 1964 2.511417 0.398182 1.5423% 1963 1.090924 0.916654 1.5697% 1962 2.184966 0.457673 2.2421% 1961 0.827588 1.208331 0.9709% 1960 0.572226 1.747561 1.6442% 1959 0.684693 1.460509 2.3579% 1958 3.959783 0.252539 2.0623% 1957 3.932353 0.254301 3.5571% 1956 0.150663 6.637330 3.3098% 1955 4.000019 0.249999 3.4226% 1954 0.178422 5.604679 1.5421% 1953 3.047124 0.328178 1.5703% 1952 1.314401 0.760803 1.5948% 1951 1.707473 0.585661 5.0183% 1950 0.331029 3.020882 1.7034% 1949 1.535943 0.651066 -0.4250% 1948 1.616501 0.618620 6.7886% 1947 2.762418 0.362002 13.9149% 1946 1.732241 0.577287 22.7896% 1945 0.075309 13.278632 3.2661% 1944 0.142061 7.039208 1.3234% 1943 1.135361 0.880777 2.7232% 1942 1.771021 0.564646 0.0000% 1926 0.930388 1.074820 0.0000% 1926 0.420002 2.380942 6.5229% 1941 1.890429 0.528980 6.1527% 1940 1.547672 0.646132 2.3623% 1939 0.835534 1.196839 -1.5482% 1938 0.324107 3.085399 -1.5312% 1937 0.166668 5.999942 3.9669% 1936 1.880746 0.531704 3.2811% 1934 0.813343 1.229494 8.9328% 1933 0.092330 10.830738 -2.6088% 1932 1.352905 0.739150 -11.5407% 1931 1.780858 0.561527 -8.4517% 1930 1.494801 0.668986 -7.1894% 1920 1.020009 0.980384 1.3234% 1943 0.279635 3.576095 2.7232% 1942 1.729410 0.578232 6.5229% 1941 0.394283 2.536248 6.1527% 1940 0.866666 1.153847 -8.4517% 1930 1.067680 0.936610 -7.1894% 1920

noticeable