Frequencies for first 10,000 rows of dntl_srvc_cd variable in pos2014 dataset :

  Services: |
Dental Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,592       85.92       85.92
          0 |      1,059       10.59       96.51
          1 |        130        1.30       97.81
          2 |        187        1.87       99.68
          3 |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016