Frequencies for first 10,000 rows of cl_srvc_cd variable in pos2015 dataset :

  Services: |
   Clinical |
 Laboratory |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,580       85.80       85.80
          0 |         55        0.55       86.35
          1 |        875        8.75       95.10
          2 |        285        2.85       97.95
          3 |        205        2.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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