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

    DEAD ON |
    ARRIVAL |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,314       73.14       73.14
          7 |      2,653       26.53       99.67
          8 |         23        0.23       99.90
          9 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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