Frequencies for first 10,000 rows of contsub3 variable in namcs2003 dataset :

 controlled |
status code |
        for |
 medication |
         #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |         35        0.35        0.35
          3 |         36        0.36        0.71
          4 |         90        0.90        1.61
          5 |          8        0.08        1.69
          6 |      2,027       20.27       21.96
          7 |         90        0.90       22.86
          . |      7,714       77.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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