Frequencies for first 10,000 rows of prov2350 variable in pos1991 dataset :

       srv: |
 outpatient |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,770       87.70       87.70
          0 |        319        3.19       90.89
          1 |        852        8.52       99.41
          2 |         27        0.27       99.68
          3 |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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