Frequencies for first 10,000 rows of prov2140 variable in pos2004 dataset :

       srv: |
  emergency |
services(or |
   ganized) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,766       87.66       87.66
          0 |        311        3.11       90.77
          1 |        654        6.54       97.31
          2 |        127        1.27       98.58
          3 |        142        1.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016