Frequencies for first 10,000 rows of injdet variable in namcs2006 dataset :

                    is visit related to |
       injury/poisoning/adverse effect? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
         unintentional injury/poisoning |        567        5.67        5.67
           intentional injury/poisoning |          7        0.07        5.74
adverse effect of med care/surg care/me |         66        0.66        6.40
                      none of the above |      8,527       85.27       91.67
                                unknown |        742        7.42       99.09
                                  blank |         91        0.91      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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