Frequencies for first 10,000 rows of prov2325 variable in pos1997 dataset :

       srv: |
orthotic/pr |
   osthetic |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,933       99.33       99.33
          0 |         41        0.41       99.74
          1 |          8        0.08       99.82
          2 |          9        0.09       99.91
          3 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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