Frequencies for first 10,000 rows of prov3610 variable in posclia2006 dataset :

 previously |
  regulated |
  indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      4,161       41.61       41.61
          N |      4,711       47.11       88.72
          Y |      1,128       11.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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