Frequencies for first 10,000 rows of cause3 variable in nhamcsed2003 dataset :

                     cause of injury #3 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                   not applicable/blank |      9,939       99.39       99.39
                         drug use/abuse |          7        0.07       99.46
                      alcohol use/abuse |         10        0.10       99.56
  pedal cyclist in pedal cycle accident |          1        0.01       99.57
              place of occurrence--home |         11        0.11       99.68
place of occurrence--place for recrea.. |          5        0.05       99.73
place of occurrence--street and highway |         11        0.11       99.84
   place of occurrence--public building |          4        0.04       99.88
place of occurrence--other specified .. |          2        0.02       99.90
surgical operation with transplant of.. |          1        0.01       99.91
fall from other slipping, tripping, or  |          1        0.01       99.92
fall resulting in striking against anot |          1        0.01       99.93
                       unspecified fall |          1        0.01       99.94
exposure (to weather conditions), not.. |          1        0.01       99.95
unspecified accident environmental an.. |          1        0.01       99.96
   late effects of unspecified accident |          1        0.01       99.97
  other and unspecified anti-infectives |          1        0.01       99.98
suicid/self-inflic poison by analgesi.. |          1        0.01       99.99
child battering and other maltreatmen.. |          1        0.01      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016