Frequencies for first 10,000 rows of skltn_rec_sw variable in pos2017 dataset : Skeleton | Record | Indicator | Freq. Percent Cum. ------------+----------------------------------- N | 8,729 87.29 87.29 Y | 1,271 12.71 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 9 Jan 2018