Frequencies for first 10,000 rows of ilop_r11 variable in natl2014 dataset :

   Interval |
 Since Last |
      Other |
  Pregnancy |
  Recode 11 |
 00 Zero to |
   3 months |
 (plural de |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          2        0.02        0.02
          1 |        263        2.63        2.65
          2 |        359        3.59        6.24
          3 |        164        1.64        7.88
          4 |        280        2.80       10.68
          5 |        218        2.18       12.86
          6 |        164        1.64       14.50
          7 |        145        1.45       15.95
          8 |        436        4.36       20.31
         88 |      6,402       64.02       84.33
         99 |      1,567       15.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Jun 2016