Frequencies for first 10,000 rows of rx7v3c2 variable in namcs2013 dataset : For RX7, | level 3 of | MULTUM drug | category #2 | Freq. Percent Cum. ------------+----------------------------------- | 9,889 98.89 98.89 174 | 7 0.07 98.96 180 | 1 0.01 98.97 182 | 2 0.02 98.99 185 | 2 0.02 99.01 196 | 4 0.04 99.05 197 | 1 0.01 99.06 198 | 8 0.08 99.14 201 | 1 0.01 99.15 203 | 7 0.07 99.22 210 | 5 0.05 99.27 211 | 45 0.45 99.72 238 | 2 0.02 99.74 239 | 2 0.02 99.76 246 | 1 0.01 99.77 268 | 1 0.01 99.78 301 | 1 0.01 99.79 385 | 6 0.06 99.85 386 | 1 0.01 99.86 387 | 1 0.01 99.87 388 | 7 0.07 99.94 389 | 3 0.03 99.97 461 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 27 Mar 2017