Frequencies for first 10,000 rows of prov2500 variable in pos2005 dataset :

       srv: |
   physical |
therapy/spe |
   ech path |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,352       93.52       93.52
          1 |        349        3.49       97.01
          2 |         68        0.68       97.69
          3 |        224        2.24       99.93
          4 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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