Frequencies for first 10,000 rows of prov2140 variable in pos1993 dataset :

       srv: |
  emergency |
services(or |
   ganized) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,856       88.56       88.56
          0 |        221        2.21       90.77
          1 |        703        7.03       97.80
          2 |        119        1.19       98.99
          3 |        101        1.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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