Frequencies for first 10,000 rows of prov2505 variable in pos1993 dataset :

srv: speech |
  pathology |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,584       85.84       85.84
          0 |        396        3.96       89.80
          1 |        293        2.93       92.73
          2 |        689        6.89       99.62
          3 |         38        0.38      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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