Frequencies for first 10,000 rows of cause23d variable in nhamcsed1995 dataset :

   cause of |
injury #2 - |
      broad |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      9,923       99.23       99.23
        814 |          1        0.01       99.24
        819 |          1        0.01       99.25
        860 |          1        0.01       99.26
        861 |          1        0.01       99.27
        862 |          1        0.01       99.28
        866 |          1        0.01       99.29
        888 |          4        0.04       99.33
        901 |          2        0.02       99.35
        914 |          3        0.03       99.38
        917 |         40        0.40       99.78
        920 |          6        0.06       99.84
        927 |          4        0.04       99.88
        928 |          2        0.02       99.90
        939 |          1        0.01       99.91
        947 |          1        0.01       99.92
        950 |          2        0.02       99.94
        966 |          1        0.01       99.95
        967 |          1        0.01       99.96
        968 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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