Frequencies for first 10,000 rows of prov2140 variable in pos1994 dataset :

       srv: |
  emergency |
services(or |
   ganized) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,940       89.40       89.40
          0 |        217        2.17       91.57
          1 |        636        6.36       97.93
          2 |        117        1.17       99.10
          3 |         90        0.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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