Frequencies for first 10,000 rows of p038e011 variable in sf12010880us12 dataset : Under 6 | years only | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,896 98.96 98.96 1 | 93 0.93 99.89 2 | 11 0.11 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 8 May 2017