Frequencies for first 10,000 rows of ubfacil variable in natl2009 dataset : Birth Place | U;R | Freq. Percent Cum. ------------+----------------------------------- 1 | 9,922 99.22 99.22 2 | 28 0.28 99.50 3 | 3 0.03 99.53 4 | 44 0.44 99.97 5 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015