Frequencies for first 10,000 rows of phrmcy_srvc_cd variable in pos2009 dataset :

       SRV: |
   PHARMACY |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,498       64.98       64.98
          0 |      1,483       14.83       79.81
          1 |      1,032       10.32       90.13
          2 |        860        8.60       98.73
          3 |        127        1.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017