Frequencies for first 10,000 rows of prov2365 variable in pos1999 dataset :

       srv: |
   pharmacy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,821       68.21       68.21
          0 |      1,157       11.57       79.78
          1 |        987        9.87       89.65
          2 |        956        9.56       99.21
          3 |         79        0.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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