Frequencies for first 10,000 rows of prov3565 variable in pos1992 dataset : * counter | for sub to | unsub in | comp | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,993 99.93 99.93 1 | 7 0.07 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017