Frequencies for first 10,000 rows of drugres2 variable in person dataset : Drug Test- | Result (2) | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,415 94.15 94.15 95 | 1 0.01 94.16 128 | 1 0.01 94.17 151 | 2 0.02 94.19 154 | 1 0.01 94.20 155 | 15 0.15 94.35 157 | 3 0.03 94.38 165 | 1 0.01 94.39 167 | 4 0.04 94.43 177 | 13 0.13 94.56 178 | 3 0.03 94.59 187 | 5 0.05 94.64 188 | 4 0.04 94.68 189 | 15 0.15 94.83 300 | 17 0.17 95.00 304 | 7 0.07 95.07 308 | 1 0.01 95.08 321 | 15 0.15 95.23 337 | 2 0.02 95.25 343 | 7 0.07 95.32 348 | 7 0.07 95.39 351 | 9 0.09 95.48 367 | 1 0.01 95.49 376 | 2 0.02 95.51 387 | 1 0.01 95.52 401 | 13 0.13 95.65 402 | 20 0.20 95.85 407 | 30 0.30 96.15 410 | 2 0.02 96.17 417 | 99 0.99 97.16 423 | 1 0.01 97.17 513 | 2 0.02 97.19 522 | 1 0.01 97.20 600 | 35 0.35 97.55 603 | 9 0.09 97.64 605 | 12 0.12 97.76 606 | 87 0.87 98.63 695 | 50 0.50 99.13 702 | 2 0.02 99.15 795 | 1 0.01 99.16 996 | 84 0.84 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016