Frequencies for first 10,000 rows of phrmcy_srvc_cd variable in pos2003 dataset :

       srv: |
   pharmacy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,357       63.57       63.57
          0 |      1,254       12.54       76.11
          1 |      1,065       10.65       86.76
          2 |      1,189       11.89       98.65
          3 |        135        1.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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