Frequencies for first 10,000 rows of shck_trma_srvc_cd variable in pos2016 dataset :

  Services: |
 Designated |
     Trauma |
Center Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,569       85.69       85.69
          0 |      1,248       12.48       98.17
          1 |        118        1.18       99.35
          2 |         22        0.22       99.57
          3 |         43        0.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 10 Jan 2017