Frequencies for first 10,000 rows of elgblty_sw variable in pos1991 dataset : eligibility | code | Freq. Percent Cum. ------------+----------------------------------- 1 | 9,694 96.94 96.94 2 | 306 3.06 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017