Frequencies for first 10,000 rows of gestrec10 variable in natlterr2014 dataset

   Combined |
  Gestation |
  Recode 10 |
01 Under 20 |
      weeks |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |         51        0.51        0.51
          3 |        136        1.36        1.87
          4 |        161        1.61        3.48
          5 |        915        9.15       12.63
          6 |      2,754       27.54       40.17
          7 |      2,261       22.61       62.78
          8 |      1,402       14.02       76.80
          9 |        594        5.94       82.74
         10 |        623        6.23       88.97
         99 |      1,103       11.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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