Frequencies for first 10,000 rows of dctd_er_srvc_cd variable in pos2008 dataset :

       srv: |
  emergency |
       dept |
(dedicated) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,655       86.55       86.55
          0 |      1,157       11.57       98.12
          1 |        152        1.52       99.64
          2 |          9        0.09       99.73
          3 |         27        0.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017