Frequencies for first 10,000 rows of prov1555 variable in pos2009 dataset :

   REGIONAL |
OVERRIDE #3 |
   (NURSE - |
       BED) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,696       96.96       96.96
          Y |        304        3.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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