Frequencies for first 10,000 rows of ubfacil variable in natl2004 dataset : Birth Place | U;R | Freq. Percent Cum. ------------+----------------------------------- 1 | 9,524 95.24 95.24 2 | 280 2.80 98.04 3 | 27 0.27 98.31 4 | 160 1.60 99.91 5 | 9 0.09 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 21 Jan 2016