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

       SRV: |
    MEDICAL |
   SUPPLIES |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,353       93.53       93.53
          0 |         31        0.31       93.84
          1 |        202        2.02       95.86
          2 |        407        4.07       99.93
          3 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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