Frequencies for first 10,000 rows of rx4v2c2 variable in namcs2009 dataset :

   for rx4, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,663       96.63       96.63
        005 |          5        0.05       96.68
        012 |          3        0.03       96.71
        015 |          2        0.02       96.73
        019 |         13        0.13       96.86
        046 |         47        0.47       97.33
        053 |          7        0.07       97.40
        064 |         30        0.30       97.70
        065 |         34        0.34       98.04
        066 |          1        0.01       98.05
        083 |        101        1.01       99.06
        098 |          6        0.06       99.12
        101 |          3        0.03       99.15
        117 |          7        0.07       99.22
        120 |          1        0.01       99.23
        123 |          4        0.04       99.27
        124 |          7        0.07       99.34
        129 |          1        0.01       99.35
        132 |          1        0.01       99.36
        136 |          2        0.02       99.38
        151 |          5        0.05       99.43
        192 |          3        0.03       99.46
        251 |          3        0.03       99.49
        257 |          1        0.01       99.50
        277 |          2        0.02       99.52
        289 |         16        0.16       99.68
        303 |          7        0.07       99.75
        320 |         11        0.11       99.86
        340 |          4        0.04       99.90
        377 |          1        0.01       99.91
        417 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016