Frequencies for first 10,000 rows of lbo_rec variable in natl2013 dataset :

 Live Birth |
      Order |
 Recode U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,645       36.45       36.45
          2 |      2,627       26.27       62.72
          3 |      1,605       16.05       78.77
          4 |        802        8.02       86.79
          5 |        397        3.97       90.76
          6 |        212        2.12       92.88
          7 |        139        1.39       94.27
          8 |        159        1.59       95.86
          9 |        414        4.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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