Frequencies for first 10,000 rows of hpring13 variable in h84 dataset :

     PID IS |
  HOLDER OF |
   NONGROUP |
       PLAN |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        176        1.76        1.76
          2 |      9,824       98.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Feb 2018