Frequencies for first 10,000 rows of nworkcmp variable in namcs2008 dataset :

       for new |
     patients, |
       accepts |
  workers comp |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |         37        0.37        0.37
       unknown |        286        2.86        3.23
not applicable |        939        9.39       12.62
           yes |      4,705       47.05       59.67
            no |      4,033       40.33      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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