Frequencies for first 10,000 rows of mdcl_suply_srvc_cd variable in pos2018 dataset :

  Services: |
    Medical |
   Supplies |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      9,243       92.43       92.43
          0 |         45        0.45       92.88
          1 |        173        1.73       94.61
          2 |        528        5.28       99.89
          3 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Feb 2019