Frequencies for first 10,000 rows of ilop_r11 variable in natl2017 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 |        269        2.69        2.70
          2 |        404        4.04        6.74
          3 |        196        1.96        8.70
          4 |        242        2.42       11.12
          5 |        215        2.15       13.27
          6 |        150        1.50       14.77
          7 |        144        1.44       16.21
          8 |        485        4.85       21.06
         88 |      6,662       66.62       87.68
         99 |      1,232       12.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Sep 2018