Frequencies for first 10,000 rows of birwt4 variable in natlterr1995 dataset :

Birthweight |
   Recode 4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        138        1.38        1.38
          2 |        921        9.21       10.59
          3 |      8,941       89.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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