Frequencies for first 10,000 rows of prov2500 variable in pos1998 dataset :

       srv: |
   physical |
therapy/spe |
   ech path |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,447       94.47       94.47
          1 |        274        2.74       97.21
          2 |         70        0.70       97.91
          3 |        206        2.06       99.97
          4 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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