Frequencies for first 10,000 rows of illb_r11 variable in natl2016 dataset : Interval | Since Last | Live Birth | Recode 11 | 00 Zero to | 3 months | (plural de | Freq. Percent Cum. ------------+----------------------------------- 0 | 156 1.56 1.56 1 | 86 0.86 2.42 2 | 557 5.57 7.99 3 | 897 8.97 16.96 4 | 1,622 16.22 33.18 5 | 912 9.12 42.30 6 | 598 5.98 48.28 7 | 415 4.15 52.43 8 | 969 9.69 62.12 88 | 3,501 35.01 97.13 99 | 287 2.87 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 4 Oct 2017