Frequencies for first 10,000 rows of rf_eclam variable in natlterr2008 dataset :

  Eclampsia |
        RFP |
586=rf_ecla |
       mp R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,061       60.61       60.61
          N |      3,932       39.32       99.93
          Y |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 May 2016