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

  Services: |
Dental Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,569       85.69       85.69
          0 |      1,081       10.81       96.50
          1 |        136        1.36       97.86
          2 |        180        1.80       99.66
          3 |         34        0.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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