Frequencies for first 10,000 rows of cl_srvc_cd variable in pos2017 dataset :

  Services: |
   Clinical |
 Laboratory |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,569       85.69       85.69
          0 |         50        0.50       86.19
          1 |        877        8.77       94.96
          2 |        293        2.93       97.89
          3 |        211        2.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 9 Jan 2018