Frequencies for first 10,000 rows of rx1v1c1 variable in namcs2007 dataset :

   for rx1, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,301       23.01       23.01
        001 |      1,188       11.88       34.89
        020 |         31        0.31       35.20
        028 |          6        0.06       35.26
        040 |        928        9.28       44.54
        057 |      1,513       15.13       59.67
        081 |         87        0.87       60.54
        087 |        354        3.54       64.08
        097 |        431        4.31       68.39
        105 |        205        2.05       70.44
        115 |        211        2.11       72.55
        122 |        719        7.19       79.74
        133 |        419        4.19       83.93
        218 |         22        0.22       84.15
        242 |        411        4.11       88.26
        254 |        579        5.79       94.05
        358 |        586        5.86       99.91
        899 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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