Frequencies for first 10,000 rows of dfagerpt variable in natlterr1995 dataset : Reported | Age of | Father | Freq. Percent Cum. ------------+----------------------------------- 15 | 1 0.01 0.01 16 | 1 0.01 0.02 18 | 1 0.01 0.03 19 | 9 0.09 0.12 20 | 13 0.13 0.25 21 | 6 0.06 0.31 22 | 9 0.09 0.40 23 | 3 0.03 0.43 24 | 10 0.10 0.53 25 | 4 0.04 0.57 26 | 3 0.03 0.60 27 | 7 0.07 0.67 28 | 5 0.05 0.72 29 | 7 0.07 0.79 30 | 4 0.04 0.83 31 | 1 0.01 0.84 32 | 2 0.02 0.86 33 | 5 0.05 0.91 34 | 2 0.02 0.93 35 | 3 0.03 0.96 36 | 1 0.01 0.97 37 | 1 0.01 0.98 38 | 1 0.01 0.99 39 | 1 0.01 1.00 40 | 2 0.02 1.02 42 | 1 0.01 1.03 44 | 1 0.01 1.04 45 | 1 0.01 1.05 66 | 1 0.01 1.06 74 | 1 0.01 1.07 99 | 9,893 98.93 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015