Frequencies for first 10,000 rows of prov2325 variable in pos2006 dataset :

       srv: |
orthotic/pr |
   osthetic |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,863       98.63       98.63
          0 |        111        1.11       99.74
          1 |          9        0.09       99.83
          2 |          7        0.07       99.90
          3 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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