Frequencies for first 10,000 rows of cause23d variable in namcs2001 dataset :

   cause of |
injury #2 - |
      broad |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      9,969       99.69       99.69
        710 |          1        0.01       99.70
        819 |          1        0.01       99.71
        861 |          1        0.01       99.72
        866 |          1        0.01       99.73
        878 |          3        0.03       99.76
        879 |          1        0.01       99.77
        884 |          2        0.02       99.79
        885 |          3        0.03       99.82
        888 |          3        0.03       99.85
        917 |          2        0.02       99.87
        920 |          1        0.01       99.88
        926 |          1        0.01       99.89
        927 |          1        0.01       99.90
        929 |          3        0.03       99.93
        930 |          1        0.01       99.94
        960 |          1        0.01       99.95
        967 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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