Frequencies for first 10,000 rows of contsub3 variable in namcs2005 dataset :

 controlled |
status code |
 for med #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |         40        0.40        0.40
          3 |         42        0.42        0.82
          4 |         98        0.98        1.80
          5 |         13        0.13        1.93
          6 |      2,917       29.17       31.10
          7 |         71        0.71       31.81
          . |      6,819       68.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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