Frequencies for first 10,000 rows of cause23d variable in namcs2002 dataset :

   Cause of |
injury #2 - |
      broad |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      9,972       99.72       99.72
        710 |          1        0.01       99.73
        826 |          1        0.01       99.74
        878 |          3        0.03       99.77
        881 |          2        0.02       99.79
        887 |          1        0.01       99.80
        888 |          4        0.04       99.84
        905 |          2        0.02       99.86
        906 |          2        0.02       99.88
        917 |          2        0.02       99.90
        920 |          1        0.01       99.91
        926 |          2        0.02       99.93
        927 |          3        0.03       99.96
        929 |          2        0.02       99.98
        931 |          1        0.01       99.99
        967 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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