Frequencies for first 10,000 rows of accdnwrk variable in h170 dataset :

        DID |
   ACCIDENT |
   OCCUR AT |
       WORK |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |          9        0.09        0.09
         -8 |          1        0.01        0.10
         -1 |      9,409       94.09       94.19
          1 |        128        1.28       95.47
          2 |        280        2.80       98.27
          3 |        173        1.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 14 Jul 2017