Frequencies for first 10,000 rows of prov2140 variable in pos1995 dataset :

       srv: |
  emergency |
services(or |
   ganized) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,933       89.33       89.33
          0 |        230        2.30       91.63
          1 |        625        6.25       97.88
          2 |        118        1.18       99.06
          3 |         94        0.94      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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