Frequencies for first 10,000 rows of enicon_9 variable in linkco1991us_num dataset :

  Condition |
code 9 (ICD |
        9th |
  Revision) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,983       99.83       99.83
       0389 |          1        0.01       99.84
       2859 |          1        0.01       99.85
       4589 |          1        0.01       99.86
       5570 |          1        0.01       99.87
       5688 |          1        0.01       99.88
       7451 |          1        0.01       99.89
       7454 |          1        0.01       99.90
       7470 |          1        0.01       99.91
       7471 |          1        0.01       99.92
       7486 |          1        0.01       99.93
       7580 |          1        0.01       99.94
       7718 |          1        0.01       99.95
       7721 |          1        0.01       99.96
       7732 |          1        0.01       99.97
       7746 |          2        0.02       99.99
       9591 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015