Frequencies for first 10,000 rows of skltn_rec_sw variable in pos2007 dataset : skeleton | record | indicator | Freq. Percent Cum. ------------+----------------------------------- | 8,657 86.57 86.57 N | 389 3.89 90.46 Y | 954 9.54 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017