Frequencies for first 10,000 rows of prov2225 variable in pos1996 dataset :

       srv: |
    medical |
   supplies |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,617       96.17       96.17
          0 |         21        0.21       96.38
          1 |        142        1.42       97.80
          2 |        219        2.19       99.99
          3 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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