Frequencies for first 10,000 rows of pct012m162 variable in sf12010880us32 dataset : 55 years | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,861 98.61 98.61 1 | 134 1.34 99.95 2 | 5 0.05 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 8 May 2017