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

    Died at |
   scene/en |
      route |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,455       74.55       74.55
          7 |      2,528       25.28       99.83
          8 |         16        0.16       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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