Frequencies for first 10,000 rows of mdcl_suply_srvc_cd variable in pos1992 dataset :

       srv: |
    medical |
   supplies |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,802       98.02       98.02
          0 |          7        0.07       98.09
          1 |         72        0.72       98.81
          2 |        119        1.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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