Frequencies for first 10,000 rows of prov2325 variable in pos1995 dataset :

       srv: |
orthotic/pr |
   osthetic |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,953       99.53       99.53
          0 |         27        0.27       99.80
          1 |          6        0.06       99.86
          2 |          7        0.07       99.93
          3 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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