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

    DEAD ON |
    ARRIVAL |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,392       73.92       73.92
          7 |      2,554       25.54       99.46
          8 |         15        0.15       99.61
          9 |         39        0.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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