Frequencies for first 10,000 rows of prov3610 variable in posclia2008 dataset :

 previously |
  regulated |
  indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
          N |      8,896       88.96       88.96
          Y |      1,104       11.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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