Frequencies for first 10,000 rows of attend variable in natl2014 dataset : Attendant | at Birth 1 | Doctor of | Medicine | (MD) | Freq. Percent Cum. ------------+----------------------------------- 1 | 6,284 62.84 62.84 2 | 481 4.81 67.65 3 | 2,525 25.25 92.90 4 | 615 6.15 99.05 5 | 71 0.71 99.76 9 | 24 0.24 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 15 Jun 2016