Frequencies for first 10,000 rows of ct_scan_srvc_cd variable in pos2017 datase

  Services: |
    CT Scan |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,569       85.69       85.69
          0 |        882        8.82       94.51
          1 |        422        4.22       98.73
          2 |         78        0.78       99.51
          3 |         49        0.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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