Frequencies for first 10,000 rows of prov2500 variable in pos2000 dataset :

       srv: |
   physical |
therapy/spe |
   ech path |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,405       94.05       94.05
          1 |        295        2.95       97.00
          2 |         68        0.68       97.68
          3 |        228        2.28       99.96
          4 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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