Frequencies for first 10,000 rows of prov2500 variable in pos2001 dataset :

       srv: |
   physical |
therapy/spe |
   ech path |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,396       93.96       93.96
          1 |        302        3.02       96.98
          2 |         69        0.69       97.67
          3 |        228        2.28       99.95
          4 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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