Frequencies for first 10,000 rows of prov2365 variable in pos2006 dataset :

       srv: |
   pharmacy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,504       65.04       65.04
          0 |      1,395       13.95       78.99
          1 |      1,039       10.39       89.38
          2 |        910        9.10       98.48
          3 |        152        1.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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