Frequencies for first 10,000 rows of dntl_srvc_cd variable in pos2013 dataset :

  Services: |
Dental Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,601       86.01       86.01
          0 |      1,062       10.62       96.63
          1 |        129        1.29       97.92
          2 |        178        1.78       99.70
          3 |         30        0.30      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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