Frequencies for first 10,000 rows of prov2225 variable in pos1991 dataset :

       srv: |
    medical |
   supplies |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,831       98.31       98.31
          0 |         10        0.10       98.41
          1 |         56        0.56       98.97
          2 |        103        1.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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