Frequencies for first 10,000 rows of birattnd variable in natl1992 dataset :

  Attendant |
   at birth |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,255       92.55       92.55
          2 |        207        2.07       94.62
          3 |        501        5.01       99.63
          5 |         37        0.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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