Frequencies for first 10,000 rows of rx9v3c2 variable in namcs2015 dataset :

   For RX9, |
 level 3 of |
MULTUM drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,927       99.27       99.27
        174 |          3        0.03       99.30
        180 |          3        0.03       99.33
        196 |          1        0.01       99.34
        198 |          4        0.04       99.38
        203 |          7        0.07       99.45
        210 |          1        0.01       99.46
        211 |         34        0.34       99.80
        238 |          2        0.02       99.82
        239 |          1        0.01       99.83
        301 |          2        0.02       99.85
        385 |          4        0.04       99.89
        386 |          1        0.01       99.90
        388 |          3        0.03       99.93
        389 |          4        0.04       99.97
        442 |          1        0.01       99.98
        444 |          1        0.01       99.99
        461 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017