Frequencies for first 10,000 rows of me_trial variable in natlterr2012 dataset :

   Trial of |
      Labor |
  Attempted |
        RFP |
621=f_md_tr |
      ial R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,163       11.63       11.63
          N |      1,023       10.23       21.86
          U |      1,376       13.76       35.62
          X |      5,301       53.01       88.63
          Y |      1,137       11.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 5 May 2016