Frequencies for first 10,000 rows of cause2 variable in namcs1998 dataset :

   cause of |
  injury #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
       0000 |      9,934       99.34       99.34
       8490 |         14        0.14       99.48
       8491 |          1        0.01       99.49
       8493 |         17        0.17       99.66
       8494 |          6        0.06       99.72
       8495 |          3        0.03       99.75
       8496 |          7        0.07       99.82
       8498 |          5        0.05       99.87
       8693 |          1        0.01       99.88
       8810 |          1        0.01       99.89
       885- |          4        0.04       99.93
       888- |          5        0.05       99.98
       9064 |          1        0.01       99.99
       9384 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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