Frequencies for first 10,000 rows of pct013c030 variable in sf12010880us35 dataset : 15 to 17 | years | Freq. Percent Cum. ------------+----------------------------------- 0 | 7,690 76.90 76.90 1 | 1,077 10.77 87.67 2 | 477 4.77 92.44 3 | 240 2.40 94.84 4 | 148 1.48 96.32 5 | 93 0.93 97.25 6 | 60 0.60 97.85 7 | 36 0.36 98.21 8 | 29 0.29 98.50 9 | 22 0.22 98.72 10 | 20 0.20 98.92 11 | 13 0.13 99.05 12 | 17 0.17 99.22 13 | 10 0.10 99.32 14 | 7 0.07 99.39 15 | 9 0.09 99.48 16 | 9 0.09 99.57 17 | 2 0.02 99.59 18 | 3 0.03 99.62 19 | 2 0.02 99.64 20 | 3 0.03 99.67 21 | 6 0.06 99.73 22 | 2 0.02 99.75 23 | 1 0.01 99.76 24 | 4 0.04 99.80 25 | 3 0.03 99.83 26 | 3 0.03 99.86 27 | 1 0.01 99.87 29 | 1 0.01 99.88 30 | 2 0.02 99.90 32 | 1 0.01 99.91 33 | 2 0.02 99.93 38 | 2 0.02 99.95 39 | 1 0.01 99.96 43 | 1 0.01 99.97 46 | 1 0.01 99.98 49 | 1 0.01 99.99 97 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 8 May 2017