Frequencies for first 10,000 rows of contsub2 variable in namcs2001 dataset :

 controlled |
status code |
        for |
 medication |
         #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |         49        0.49        0.49
          3 |         51        0.51        1.00
          4 |        148        1.48        2.48
          5 |         13        0.13        2.61
          6 |      2,808       28.08       30.69
          7 |         87        0.87       31.56
          . |      6,844       68.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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