Frequencies for first 10,000 rows of me_pres variable in natlterr2010 dataset :

      Fetal |
Presentatio |
      n RFP |
619=f_md_pr |
    esent R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      4,656       46.56       46.56
          1 |      4,182       41.82       88.38
          2 |         92        0.92       89.30
          3 |         33        0.33       89.63
          9 |      1,037       10.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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