Frequencies for first 10,000 rows of prov2140 variable in pos2003 dataset :

       srv: |
  emergency |
services(or |
   ganized) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,789       87.89       87.89
          0 |        297        2.97       90.86
          1 |        650        6.50       97.36
          2 |        124        1.24       98.60
          3 |        140        1.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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