Frequencies for first 10,000 rows of prov2225 variable in pos1993 dataset :

       srv: |
    medical |
   supplies |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,768       97.68       97.68
          0 |         10        0.10       97.78
          1 |         75        0.75       98.53
          2 |        147        1.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016