Frequencies for first 10,000 rows of PT_SRVC_CD variable in pos2011 dataset :

   Services |
  Provided: |
   Physical |
    Therapy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,858       58.58       58.58
          0 |        369        3.69       62.27
          1 |      2,009       20.09       82.36
          2 |      1,365       13.65       96.01
          3 |        399        3.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Apr 2019