Frequencies for first 10,000 rows of prov2365 variable in pos2005 dataset :

       srv: |
   pharmacy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,368       63.68       63.68
          0 |      1,348       13.48       77.16
          1 |      1,075       10.75       87.91
          2 |      1,069       10.69       98.60
          3 |        140        1.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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