Frequencies for first 10,000 rows of anemia variable in natlterr1995 dataset :

    Anemia  |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        163        1.63        1.63
          2 |      9,830       98.30       99.93
          9 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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