Frequencies for extricat variable in person dataset :

Extrication |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,200       90.77       90.77
          1 |        122        9.23      100.00
------------+-----------------------------------
      Total |      1,322      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016