Frequencies for first 10,000 rows of nlbd variable in natl1977 dataset : Number of | children | born dead ( | fetal | deaths ) | Freq. Percent Cum. ------------+----------------------------------- 0 | 8,616 86.16 86.16 1 | 1,090 10.90 97.06 2 | 199 1.99 99.05 3 | 53 0.53 99.58 4 | 14 0.14 99.72 5 | 5 0.05 99.77 6 | 2 0.02 99.79 9 | 1 0.01 99.80 10 | 1 0.01 99.81 66 | 1 0.01 99.82 77 | 18 0.18 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 3 Jan 2016