Frequencies for first 10,000 rows of chrprctic_srvc_cd variable in pos2016 dataset :

  Services: |
Chiropracti |
     c Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,569       85.69       85.69
          0 |      1,380       13.80       99.49
          1 |         23        0.23       99.72
          2 |         23        0.23       99.95
          3 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 10 Jan 2017