Frequencies for first 10,000 rows of anemia variable in natlterr2000 dataset :

    Anemia  |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        344        3.44        3.44
          2 |      9,655       96.55       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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