Frequencies for first 10,000 rows of anemia variable in natlterr1999 dataset :

    Anemia  |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        296        2.96        2.96
          2 |      9,700       97.00       99.96
          9 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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