Frequencies for first 10,000 rows of prov2370 variable in pos2006 dataset :

       srv: |
   physical |
    therapy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,589       55.89       55.89
          0 |        355        3.55       59.44
          1 |      1,999       19.99       79.43
          2 |      1,450       14.50       93.93
          3 |        607        6.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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