Frequencies for first 10,000 rows of drugcla1 variable in nhamcsed2001 dataset : drug class | for adverse | drug #1 | Freq. Percent Cum. ------------+----------------------------------- | 9,654 96.54 96.54 0117 | 2 0.02 96.56 0118 | 3 0.03 96.59 0281 | 1 0.01 96.60 0346 | 2 0.02 96.62 0347 | 1 0.01 96.63 0348 | 4 0.04 96.67 0353 | 1 0.01 96.68 0357 | 1 0.01 96.69 0409 | 4 0.04 96.73 0506 | 1 0.01 96.74 0507 | 1 0.01 96.75 0510 | 2 0.02 96.77 0512 | 3 0.03 96.80 0514 | 1 0.01 96.81 0626 | 2 0.02 96.83 0627 | 6 0.06 96.89 0628 | 3 0.03 96.92 0630 | 3 0.03 96.95 0875 | 1 0.01 96.96 1032 | 1 0.01 96.97 1036 | 3 0.03 97.00 1180 | 5 0.05 97.05 1182 | 1 0.01 97.06 1264 | 1 0.01 97.07 1373 | 3 0.03 97.10 1374 | 5 0.05 97.15 1479 | 2 0.02 97.17 1721 | 15 0.15 97.32 1722 | 7 0.07 97.39 1727 | 5 0.05 97.44 1864 | 1 0.01 97.45 1941 | 2 0.02 97.47 1944 | 2 0.02 97.49 2000 | 163 1.63 99.12 2087 | 29 0.29 99.41 2210 | 12 0.12 99.53 2220 | 34 0.34 99.87 2240 | 1 0.01 99.88 2250 | 10 0.10 99.98 2260 | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016