Frequencies for first 10,000 rows of place variable in nhamcsed2000 dataset :

       place of occurrence of injury |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                           Residence |        945        9.45        9.45
              Recreation/sports area |        210        2.10       11.55
                      Street/highway |        539        5.39       16.94
                              School |         63        0.63       17.57
               Other public building |         84        0.84       18.41
                    Industrial place |        171        1.71       20.12
                               Other |        131        1.31       21.43
                             Unknown |      1,488       14.88       36.31
Not applicable (not an injury visit) |      6,369       63.69      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

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