Frequencies for first 10,000 rows of contsub4 variable in namcs2003 dataset :

 controlled |
status code |
        for |
 medication |
         #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |         10        0.10        0.10
          3 |         15        0.15        0.25
          4 |         56        0.56        0.81
          5 |          2        0.02        0.83
          6 |      1,380       13.80       14.63
          7 |         57        0.57       15.20
          . |      8,480       84.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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