Frequencies for first 10,000 rows of CT_SCAN_SRVC_CD variable in pos2011 dataset :

   Services |
  Provided: |
 CT Scanner |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,614       86.14       86.14
          0 |      1,013       10.13       96.27
          1 |        284        2.84       99.11
          2 |         63        0.63       99.74
          3 |         26        0.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Apr 2019