Frequencies for first 10,000 rows of cause3 variable in nhamcsed2004 dataset :

                     cause of injury #3 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                   not applicable/blank |      9,955       99.55       99.55
                         drug use/abuse |          7        0.07       99.62
                      alcohol use/abuse |          9        0.09       99.71
caught accidentally in or between obj.. |          1        0.01       99.72
assault by cutting and piercing instr.. |          1        0.01       99.73
              place of occurrence--home |         10        0.10       99.83
place of occurrence--industrial place.. |          1        0.01       99.84
place of occurrence--place for recrea.. |          1        0.01       99.85
place of occurrence--street and highway |          4        0.04       99.89
   place of occurrence--public building |          4        0.04       99.93
accidental poisoning by other specifi.. |          1        0.01       99.94
fall resulting in striking against anot |          1        0.01       99.95
oth strikng against w or wo subseq fall |          1        0.01       99.96
accident caused by oth spec cutting/p.. |          1        0.01       99.97
                        antidepressants |          1        0.01       99.98
suicide/self-inflic pois by tranquili.. |          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