Frequencies for first 10,000 rows of p012e030 variable in sf12010860us7 dataset : 15 to 17 | years | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,360 93.60 93.60 1 | 485 4.85 98.45 2 | 107 1.07 99.52 3 | 30 0.30 99.82 4 | 11 0.11 99.93 5 | 1 0.01 99.94 6 | 1 0.01 99.95 7 | 2 0.02 99.97 8 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 Apr 2017