Frequencies for first 10,000 rows of prov4190 variable in posclia2006 dataset :

 non-profit |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,462       84.62       84.62
          N |      1,333       13.33       97.95
          Y |        205        2.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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