Frequencies for first 10,000 rows of ins_pubrx variable in mcbsatc2013 dataset 

     Public |
 insurances |
   cover Rx |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        213        2.13        2.13
          2 |         17        0.17        2.30
          . |      9,770       97.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 24 May 2016