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

    DEAD ON |
    ARRIVAL |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,451       74.51       74.51
          7 |      2,497       24.97       99.48
          8 |         37        0.37       99.85
          9 |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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