Frequencies for first 10,000 rows of lfdflg variable in natl1986 dataset : Flag Last | Fetal Death | Valid Date | Flag | Freq. Percent Cum. ------------+----------------------------------- 0 | 8,937 89.37 89.37 1 | 1,063 10.63 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 3 Jan 2016