Frequencies for first 10,000 rows of p038e011 variable in sf12010860us12 dataset : Under 6 | years only | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,841 98.41 98.41 1 | 139 1.39 99.80 2 | 17 0.17 99.97 3 | 1 0.01 99.98 4 | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 Apr 2017