Frequencies for first 10,000 rows of phrmcy_srvc_cd variable in pos2000 dataset :

       srv: |
   pharmacy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,788       67.88       67.88
          0 |      1,132       11.32       79.20
          1 |        994        9.94       89.14
          2 |      1,002       10.02       99.16
          3 |         84        0.84      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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