Frequencies for first 10,000 rows of death_yr variable in person dataset :

 Death Date |
     (YEAR) |      Freq.     Percent        Cum.
------------+-----------------------------------
       2011 |      4,245       42.45       42.45
       2012 |          8        0.08       42.53
       8888 |      5,740       57.40       99.93
       9999 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016