Frequencies for first 10,000 rows of prov2505 variable in pos2006 dataset :

srv: speech |
  pathology |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,326       73.26       73.26
          0 |        848        8.48       81.74
          1 |        781        7.81       89.55
          2 |        993        9.93       99.48
          3 |         52        0.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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