Frequencies for first 10,000 rows of drugres1 variable in person dataset : DRUG TEST | RESULTS-1 | Freq. Percent Cum. ------------+----------------------------------- 0 | 7,228 72.28 72.28 1 | 1,503 15.03 87.31 100 | 6 0.06 87.37 117 | 1 0.01 87.38 128 | 5 0.05 87.43 129 | 1 0.01 87.44 136 | 2 0.02 87.46 137 | 1 0.01 87.47 151 | 5 0.05 87.52 155 | 17 0.17 87.69 165 | 1 0.01 87.70 167 | 6 0.06 87.76 177 | 23 0.23 87.99 187 | 10 0.10 88.09 189 | 11 0.11 88.20 208 | 1 0.01 88.21 300 | 7 0.07 88.28 303 | 8 0.08 88.36 304 | 30 0.30 88.66 308 | 3 0.03 88.69 313 | 2 0.02 88.71 321 | 12 0.12 88.83 333 | 1 0.01 88.84 334 | 3 0.03 88.87 343 | 3 0.03 88.90 348 | 31 0.31 89.21 351 | 1 0.01 89.22 355 | 1 0.01 89.23 358 | 1 0.01 89.24 367 | 3 0.03 89.27 387 | 1 0.01 89.28 401 | 130 1.30 90.58 402 | 51 0.51 91.09 405 | 1 0.01 91.10 407 | 34 0.34 91.44 410 | 2 0.02 91.46 417 | 41 0.41 91.87 495 | 1 0.01 91.88 600 | 30 0.30 92.18 603 | 22 0.22 92.40 605 | 15 0.15 92.55 606 | 52 0.52 93.07 695 | 40 0.40 93.47 702 | 4 0.04 93.51 795 | 1 0.01 93.52 996 | 51 0.51 94.03 997 | 453 4.53 98.56 999 | 144 1.44 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016