Frequencies for first 10,000 rows of contsub3 variable in namcs2004 dataset :

 controlled |
status code |
        for |
 medication |
         #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |         38        0.38        0.38
          3 |         26        0.26        0.64
          4 |        109        1.09        1.73
          5 |          5        0.05        1.78
          6 |      1,822       18.22       20.00
          7 |         57        0.57       20.57
          . |      7,943       79.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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