Frequencies for first 10,000 rows of pct012o098 variable in sf12010860us34 dataset : 95 years | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,954 99.54 99.54 1 | 46 0.46 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 Apr 2017