Frequencies for first 10,000 rows of skltn_rec_sw variable in pos2015 dataset : Skeleton | Record | Indicator | Freq. Percent Cum. ------------+----------------------------------- N | 8,781 87.81 87.81 Y | 1,219 12.19 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016