Frequencies for first 10,000 rows of prov2140 variable in pos1998 dataset :

       srv: |
  emergency |
services(or |
   ganized) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,805       88.05       88.05
          0 |        266        2.66       90.71
          1 |        697        6.97       97.68
          2 |        123        1.23       98.91
          3 |        109        1.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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