Frequencies for first 10,000 rows of attend variable in natl2016 dataset : Attendant | at Birth 1 | Doctor of | Medicine | (MD) | Freq. Percent Cum. ------------+----------------------------------- 1 | 6,232 62.32 62.32 2 | 535 5.35 67.67 3 | 2,675 26.75 94.42 4 | 512 5.12 99.54 5 | 28 0.28 99.82 9 | 18 0.18 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 4 Oct 2017