Frequencies for first 10,000 rows of drugres1 variable in person dataset : DRUG TEST | RESULTS-1 | Freq. Percent Cum. ------------+----------------------------------- 0 | 7,219 72.19 72.19 1 | 1,227 12.27 84.46 100 | 1 0.01 84.47 128 | 4 0.04 84.51 155 | 1 0.01 84.52 167 | 1 0.01 84.53 174 | 1 0.01 84.54 177 | 4 0.04 84.58 187 | 9 0.09 84.67 207 | 1 0.01 84.68 208 | 1 0.01 84.69 300 | 1 0.01 84.70 303 | 1 0.01 84.71 304 | 2 0.02 84.73 308 | 3 0.03 84.76 321 | 17 0.17 84.93 334 | 1 0.01 84.94 343 | 2 0.02 84.96 351 | 4 0.04 85.00 358 | 2 0.02 85.02 395 | 2 0.02 85.04 401 | 35 0.35 85.39 402 | 10 0.10 85.49 407 | 32 0.32 85.81 417 | 41 0.41 86.22 423 | 1 0.01 86.23 600 | 5 0.05 86.28 603 | 21 0.21 86.49 606 | 6 0.06 86.55 695 | 14 0.14 86.69 702 | 4 0.04 86.73 795 | 1 0.01 86.74 996 | 44 0.44 87.18 997 | 137 1.37 88.55 998 | 2 0.02 88.57 999 | 1,143 11.43 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016