Frequencies for first 10,000 rows of drugres2 variable in person dataset : Drug Test- | Result (2) | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,220 92.20 92.20 1 | 164 1.64 93.84 95 | 156 1.56 95.40 155 | 3 0.03 95.43 156 | 1 0.01 95.44 157 | 7 0.07 95.51 167 | 6 0.06 95.57 177 | 6 0.06 95.63 187 | 11 0.11 95.74 188 | 2 0.02 95.76 189 | 5 0.05 95.81 208 | 1 0.01 95.82 256 | 1 0.01 95.83 295 | 1 0.01 95.84 300 | 3 0.03 95.87 304 | 12 0.12 95.99 313 | 2 0.02 96.01 316 | 3 0.03 96.04 321 | 6 0.06 96.10 334 | 1 0.01 96.11 337 | 2 0.02 96.13 343 | 2 0.02 96.15 348 | 3 0.03 96.18 351 | 9 0.09 96.27 358 | 1 0.01 96.28 367 | 1 0.01 96.29 387 | 3 0.03 96.32 401 | 11 0.11 96.43 402 | 5 0.05 96.48 407 | 36 0.36 96.84 412 | 1 0.01 96.85 417 | 96 0.96 97.81 513 | 1 0.01 97.82 515 | 5 0.05 97.87 600 | 7 0.07 97.94 603 | 13 0.13 98.07 605 | 17 0.17 98.24 606 | 54 0.54 98.78 695 | 42 0.42 99.20 702 | 1 0.01 99.21 996 | 51 0.51 99.72 997 | 1 0.01 99.73 999 | 27 0.27 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016