Frequencies for first 10,000 rows of pct012i208 variable in sf12010860us28 dataset : 105 to 109 | years | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,369 93.69 93.69 1 | 531 5.31 99.00 2 | 71 0.71 99.71 3 | 22 0.22 99.93 4 | 7 0.07 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 Apr 2017