Frequencies for first 10,000 rows of contsub5 variable in namcs2001 dataset :

 controlled |
status code |
        for |
 medication |
         #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |          9        0.09        0.09
          3 |          3        0.03        0.12
          4 |         22        0.22        0.34
          6 |        609        6.09        6.43
          7 |          8        0.08        6.51
          . |      9,349       93.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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