Frequencies for first 10,000 rows of enicon_15 variable in linkco1991us_num dataset :

  Condition |
    code 15 |
   (ICD 9th |
  Revision) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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