Frequencies for first 10,000 rows of pct012o104 variable in sf12000860us30 dataset : 105 to 109 | years | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,997 99.97 99.97 1 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 Apr 2017