Frequencies for first 10,000 rows of llbrflg variable in natl1974 dataset :

    Date of |
  Last Live |
  Birth (by |
State) flag |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,749       97.49       97.49
          1 |        251        2.51      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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