Frequencies for first 10,000 rows of cause3 variable in nhamcsed2009 dataset :

   cause of |
injury #3 - |
   detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,954       99.54       99.54
       700- |         10        0.10       99.64
       710- |          5        0.05       99.69
       8490 |          5        0.05       99.74
       8494 |          2        0.02       99.76
       8495 |          6        0.06       99.82
       8496 |          3        0.03       99.85
       8497 |          4        0.04       99.89
       8781 |          1        0.01       99.90
       8888 |          1        0.01       99.91
       9064 |          1        0.01       99.92
       9068 |          1        0.01       99.93
       9109 |          1        0.01       99.94
       9208 |          1        0.01       99.95
       9426 |          1        0.01       99.96
       9505 |          1        0.01       99.97
       9509 |          1        0.01       99.98
       9673 |          1        0.01       99.99
       9687 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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