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

     Anemia |
(Hct.<39/Hg |
     b.<13) |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         61        0.61        0.61
          2 |      8,797       87.97       88.58
          9 |      1,142       11.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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