Frequencies for first 10,000 rows of pct012h208 variable in sf12010860us27 dataset : 105 to 109 | years | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,920 99.20 99.20 1 | 64 0.64 99.84 2 | 12 0.12 99.96 3 | 3 0.03 99.99 4 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 Apr 2017