Frequencies for first 10,000 rows of phrmcy_srvc_cd variable in pos1994 dataset :

       srv: |
   pharmacy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,295       72.95       72.95
          0 |      1,017       10.17       83.12
          1 |        919        9.19       92.31
          2 |        705        7.05       99.36
          3 |         64        0.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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