Frequencies for first 10,000 rows of livord3 variable in natl1975 dataset :

 Live birth |
      order |
   Recode 3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,374       43.74       43.74
          2 |      5,604       56.04       99.78
          3 |         22        0.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016