Frequencies for first 10,000 rows of urf_phyper variable in natlterr2014 datase

  Pregnancy |
 Associated |
Hypertensio |
    n 1 Yes |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        273        2.73        2.73
          2 |      8,574       85.74       88.47
          9 |      1,153       11.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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