Frequencies for first 10,000 rows of edprn variable in nhamcsed1992 dataset :

  Return to |
 ED, P.R.N. |
(as needed) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,651       76.51       76.51
          1 |      2,349       23.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016