Frequencies for first 10,000 rows of birattnd variable in linkco1991us_num dataset :

  Attendant |
at Delivery |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,330       93.30       93.30
          2 |        160        1.60       94.90
          3 |        290        2.90       97.80
          4 |          9        0.09       97.89
          5 |        188        1.88       99.77
          9 |         23        0.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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