Frequencies for first 10,000 rows of rx7v1c1 variable in namcs2006 dataset :

   for rx7, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,110       91.10       91.10
        001 |         18        0.18       91.28
        020 |          2        0.02       91.30
        040 |        154        1.54       92.84
        057 |        187        1.87       94.71
        081 |         23        0.23       94.94
        087 |         67        0.67       95.61
        097 |         48        0.48       96.09
        105 |         28        0.28       96.37
        115 |         84        0.84       97.21
        122 |         80        0.80       98.01
        133 |         39        0.39       98.40
        218 |         14        0.14       98.54
        242 |         39        0.39       98.93
        254 |          9        0.09       99.02
        358 |         98        0.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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