Frequencies for first 10,000 rows of p038e004 variable in sf12010880us12 dataset : Under 6 | years only | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,566 95.66 95.66 1 | 346 3.46 99.12 2 | 58 0.58 99.70 3 | 20 0.20 99.90 4 | 5 0.05 99.95 5 | 4 0.04 99.99 9 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 8 May 2017