Frequencies for first 10,000 rows of ilop_r11 variable in natlterr2014 dataset 

   Interval |
 Since Last |
      Other |
  Pregnancy |
  Recode 11 |
 00 Zero to |
   3 months |
 (plural de |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          1        0.01        0.01
          1 |        117        1.17        1.18
          2 |        221        2.21        3.39
          3 |        160        1.60        4.99
          4 |        192        1.92        6.91
          5 |        150        1.50        8.41
          6 |        110        1.10        9.51
          7 |         80        0.80       10.31
          8 |        308        3.08       13.39
         88 |      7,337       73.37       86.76
         99 |        247        2.47       89.23
          . |      1,077       10.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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