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

  Services: |
Chiropracti |
     c Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,560       85.60       85.60
          0 |      1,382       13.82       99.42
          1 |         26        0.26       99.68
          2 |         25        0.25       99.93
          3 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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