Frequencies for first 10,000 rows of totord9 variable in natl1981 dataset :

Total birth |
      order |
     recode |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,822       38.22       38.22
          2 |      3,033       30.33       68.55
          3 |      1,645       16.45       85.00
          4 |        766        7.66       92.66
          5 |        365        3.65       96.31
          6 |        159        1.59       97.90
          7 |         89        0.89       98.79
          8 |        116        1.16       99.95
          9 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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