date ibm sp 19620131 -0.063903 -0.037876 19620228 -0.007841 0.016270 19620330 -0.007914 -0.005860 19620430 -0.147818 -0.061970 19620531 -0.133811 -0.085990 19620629 -0.135669 -0.081838 19620731 0.140752 0.063562 19620831 0.025840 0.015284 19620928 -0.107886 -0.048207 19621031 -0.021216 0.004443 19621130 0.153902 0.101557 19621231 -0.021330 0.013492 19630131 0.086538 0.049128 19630228 -0.054277 -0.028852 19630329 0.053158 0.035464 19630430 0.101544 0.048520 19630531 0.031267 0.014327 19630628 -0.085909 -0.020198 19630731 -0.004011 -0.003460 19630830 0.025892 0.048749 19630930 0.016301 -0.011034 19631031 0.092920 0.032218 19631129 -0.015182 -0.010539 19631231 0.044822 0.024444 19640131 0.069034 0.026926 19640228 0.052122 0.009865 19640331 0.044376 0.015167 19640430 -0.040387 0.006077 19640528 0.054910 0.011452 19640630 -0.006250 0.016424 19640731 -0.031447 0.018240 19640831 -0.043831 -0.016230 19640930 -0.009081 0.028718 19641030 -0.037801 0.008078 19641130 -0.014881 -0.005185 19641231 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0.047447 19701231 0.034174 0.056766 19710129 0.024390 0.040477 19710226 0.037788 0.009074 19710331 0.062407 0.036796 19710430 0.000699 0.036288 19710528 -0.082320 -0.041558 19710630 -0.030581 0.000703 19710730 -0.081230 -0.041324 19710831 0.048240 0.036095 19710930 -0.000822 -0.006968 19711029 -0.010700 -0.041794 19711130 0.020965 -0.002547 19711231 0.101473 0.086179 19720131 0.093611 0.018121 19720229 0.005027 0.025303 19720330 0.037313 0.005912 19720428 0.009810 0.004384 19720531 0.033938 0.017275 19720630 -0.014456 -0.021821 19720731 0.022321 0.002333 19720831 0.022707 0.034454 19720929 -0.004896 -0.004861 19721031 -0.051661 0.009317 19721130 0.017769 0.045617 19721229 0.028133 0.011828 19730131 0.083333 -0.017111 19730228 -0.005970 -0.037490 19730330 0.000000 -0.001433 19730430 -0.054461 -0.040800 19730531 -0.032261 -0.018884 19730629 0.007149 -0.006575 19730731 -0.007886 0.037982 19730831 -0.039364 -0.036685 19730928 -0.142857 0.040096 19731031 0.086240 -0.001291 19731130 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19940930 0.016423 -0.026898 19941031 0.070018 0.020834 19941130 -0.046980 -0.039505 19941230 0.038869 0.012299 19950131 -0.018707 0.024278 19950228 0.046794 0.036074 19950331 0.091362 0.027329 19950428 0.152207 0.027960 19950531 -0.014531 0.036312 19950630 0.032258 0.021279 19950731 0.134115 0.031776 19950831 -0.048220 -0.000320 19950929 -0.085852 0.040098 19951031 0.029101 -0.004979 19951130 -0.003856 0.041049 19951229 -0.054334 0.017444 19960131 0.187414 0.032617 19960229 0.132488 0.006934 19960329 -0.092762 0.007917 19960430 -0.031461 0.013431 19960531 -0.006032 0.022853 19960628 -0.072600 0.002257 19960731 0.085859 -0.045748 19960830 0.067209 0.018814 19960930 0.088525 0.054173 19961031 0.036145 0.026131 19961129 0.238178 0.073376 19961231 -0.049412 -0.021505 19970131 0.035479 0.061317 19970228 -0.081434 0.005928 19970331 -0.045217 -0.042614 19970430 0.169399 0.058406 19970530 0.080374 0.058577 19970630 0.043353 0.043453 19970731 0.171745 0.078123 19970829 -0.039480 -0.057446 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