Frequencies for first 10,000 rows of payinc variable in namcs2010 dataset :

what incentive |
  payment does |
 your practice |
 plan to apply |
          for? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |        141        1.41        1.41
       unknown |        828        8.28        9.69
not applicable |      5,460       54.60       64.29
      medicare |      2,885       28.85       93.14
      medicaid |        686        6.86      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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