Frequencies for first 10,000 rows of contsub6 variable in namcs2001 dataset :

 controlled |
status code |
        for |
 medication |
         #6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |          3        0.03        0.03
          3 |          2        0.02        0.05
          4 |         18        0.18        0.23
          5 |          1        0.01        0.24
          6 |        406        4.06        4.30
          7 |          4        0.04        4.34
          . |      9,566       95.66      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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