Frequencies for first 10,000 rows of contsub7 variable in namcs2004 dataset :

 controlled |
status code |
        for |
 medication |
         #7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |          5        0.05        0.05
          3 |          4        0.04        0.09
          4 |         22        0.22        0.31
          5 |          1        0.01        0.32
          6 |        442        4.42        4.74
          7 |         12        0.12        4.86
          . |      9,514       95.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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