Frequencies for first 10,000 rows of cause2 variable in nhamcsopd2003 dataset :

                     cause of injury #2 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                   not applicable/blank |      9,844       98.44       98.44
                         drug use/abuse |          7        0.07       98.51
                      alcohol use/abuse |         11        0.11       98.62
   overexertion and strenuous movements |          1        0.01       98.63
drvr of motr veh in nontrffc acc inv .. |          1        0.01       98.64
unspec persn in nontrffc acc involv o.. |          1        0.01       98.65
              place of occurrence--home |         23        0.23       98.88
place of occurrence--industrial place.. |          3        0.03       98.91
place of occurrence--place for recrea.. |          7        0.07       98.98
place of occurrence--street and highway |         60        0.60       99.58
   place of occurrence--public building |          8        0.08       99.66
place of occurrence--residential inst.. |          1        0.01       99.67
place of occurrence--other specified .. |          4        0.04       99.71
acc pois by water, mineral, and uric .. |          1        0.01       99.72
other specified surgical operations a.. |          1        0.01       99.73
radiological procedure and radiotherapy |          1        0.01       99.74
  fall on or from other stairs or steps |          1        0.01       99.75
fall from other slipping, tripping, or  |          2        0.02       99.77
fall resulting in striking against shar |          1        0.01       99.78
                             other fall |          1        0.01       99.79
                       unspecified fall |          1        0.01       99.80
accident caused by other specified ma.. |          1        0.01       99.81
accident caused by oth spec cutting/p.. |          2        0.02       99.83
accident caused by unspec cutting/pie.. |          1        0.01       99.84
accident caused by oth hot/caustic/co.. |          1        0.01       99.85
        late effects of accidental fall |          1        0.01       99.86
        late effects of other accidents |          1        0.01       99.87
   other drugs and medicinal substances |          1        0.01       99.88
                 unarmed fight or brawl |          2        0.02       99.90
child battering and other maltreatmen.. |          1        0.01       99.91
battering and other maltreatment by s.. |          2        0.02       99.93
battering and other maltreatment by n.. |          1        0.01       99.94
child and adult battering and other m.. |          6        0.06      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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