Frequencies for first 10,000 rows of pct012n208 variable in sf12010860us33 dataset : 105 to 109 | years | Freq. Percent Cum. ------------+----------------------------------- 0 | 10,000 100.00 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 Apr 2017