Frequencies for first 10,000 rows of nworkcmp variable in namcs2012 dataset :

 Type of payments |
accepted from new |
patients: WOrkers |
     Compensation |      Freq.     Percent        Cum.
------------------+-----------------------------------
          Unknown |        371        3.71        3.71
   Not applicable |        327        3.27        6.98
              Yes |      4,275       42.75       49.73
               No |      5,027       50.27      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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