Frequencies for first 10,000 rows of birattnd variable in natl1997 dataset :

  Attendant |
   at birth |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,481       94.81       94.81
          2 |        189        1.89       96.70
          3 |        302        3.02       99.72
          5 |         28        0.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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