Frequencies for first 10,000 rows of prov2505 variable in pos2004 dataset :

srv: speech |
  pathology |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,114       81.14       81.14
          0 |        465        4.65       85.79
          1 |        444        4.44       90.23
          2 |        927        9.27       99.50
          3 |         50        0.50      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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