Frequencies for first 10,000 rows of cause33d variable in nhamcsed2001 dataset :

   cause of |
injury #3 - |
      broad |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      9,970       99.70       99.70
        700 |          4        0.04       99.74
        710 |          8        0.08       99.82
        850 |          2        0.02       99.84
        854 |          2        0.02       99.86
        882 |          1        0.01       99.87
        888 |          2        0.02       99.89
        916 |          1        0.01       99.90
        930 |          1        0.01       99.91
        967 |          7        0.07       99.98
        980 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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