Frequencies for first 10,000 rows of me_pres variable in natlterr2011 dataset :

      Fetal |
Presentatio |
      n RFP |
619=f_md_pr |
    esent R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,536       25.36       25.36
          1 |      4,807       48.07       73.43
          2 |        166        1.66       75.09
          3 |         38        0.38       75.47
          9 |      2,453       24.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015