Frequencies for first 10,000 rows of tbo_rec variable in natl2008 dataset :

Total Birth |
      Order |
 Recode U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,612       36.12       36.12
          2 |      3,036       30.36       66.48
          3 |      1,866       18.66       85.14
          4 |        836        8.36       93.50
          5 |        356        3.56       97.06
          6 |        154        1.54       98.60
          7 |         70        0.70       99.30
          8 |         58        0.58       99.88
          9 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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