Frequencies for first 10,000 rows of cause23d variable in nhamcsed1992 dataset :

   Cause of |
injury #2 - |
      broad |      Freq.     Percent        Cum.
------------+-----------------------------------
       8000 |      9,448       94.48       94.48
       8001 |          5        0.05       94.53
       8849 |        512        5.12       99.65
       8850 |          1        0.01       99.66
       8853 |          1        0.01       99.67
       8864 |          2        0.02       99.69
       8881 |          1        0.01       99.70
       8888 |          3        0.03       99.73
       8906 |          1        0.01       99.74
       8914 |          2        0.02       99.76
       8916 |          2        0.02       99.78
       8917 |          3        0.03       99.81
       8918 |          2        0.02       99.83
       8920 |          7        0.07       99.90
       8924 |          2        0.02       99.92
       8928 |          1        0.01       99.93
       8960 |          2        0.02       99.95
       8966 |          1        0.01       99.96
       8968 |          3        0.03       99.99
       8976 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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