Frequencies for first 10,000 rows of cause3 variable in nhamcsed2005 dataset :

                     cause of injury #3 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                   not applicable/blank |      9,955       99.55       99.55
                         drug use/abuse |          4        0.04       99.59
                      alcohol use/abuse |          7        0.07       99.66
    accident caused by unspecified fire |          1        0.01       99.67
foreign body accidentally entering ey.. |          1        0.01       99.68
              place of occurrence--home |          7        0.07       99.75
place of occurrence--street and highway |          8        0.08       99.83
   place of occurrence--public building |          7        0.07       99.90
         accidental poisoning by heroin |          1        0.01       99.91
     accidental poisoning by fungicides |          1        0.01       99.92
other specified surgical operations a.. |          1        0.01       99.93
                             other fall |          1        0.01       99.94
                       unspecified fall |          1        0.01       99.95
       insulins and antidiabetic agents |          1        0.01       99.96
   other drugs and medicinal substances |          1        0.01       99.97
suicide/self-inflic poison by oth spe.. |          2        0.02       99.99
           assault by unspecified means |          1        0.01      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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