Frequencies for first 10,000 rows of phrmcy_srvc_cd variable in pos2010 dataset :

       SRV: |
   PHARMACY |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,588       65.88       65.88
          0 |      1,420       14.20       80.08
          1 |      1,034       10.34       90.42
          2 |        829        8.29       98.71
          3 |        129        1.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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