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

  Services: |
   Clinical |
 Laboratory |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,592       85.92       85.92
          0 |         51        0.51       86.43
          1 |        875        8.75       95.18
          2 |        283        2.83       98.01
          3 |        199        1.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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