Frequencies for first 10,000 rows of cause3 variable in nhamcsed2001 dataset :

   cause of |
  injury #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
       0000 |      9,970       99.70       99.70
       700- |          4        0.04       99.74
       710- |          8        0.08       99.82
       8500 |          1        0.01       99.83
       8501 |          1        0.01       99.84
       8543 |          2        0.02       99.86
       882- |          1        0.01       99.87
       888- |          2        0.02       99.89
       916- |          1        0.01       99.90
       9303 |          1        0.01       99.91
       9671 |          3        0.03       99.94
       9679 |          4        0.04       99.98
       9805 |          1        0.01       99.99
       9809 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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