Frequencies for first 10,000 rows of doa variable in nhamcsed1995 dataset :

doa/died in |
         ed |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,976       99.76       99.76
          1 |         24        0.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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