Frequencies for first 10,000 rows of contsub5 variable in namcs2003 dataset :

 controlled |
status code |
        for |
 medication |
         #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |         13        0.13        0.13
          3 |          5        0.05        0.18
          4 |         25        0.25        0.43
          6 |        953        9.53        9.96
          7 |         41        0.41       10.37
          . |      8,963       89.63      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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