Frequencies for first 10,000 rows of educsmsa variable in natl1996 dataset : Education | of Mother | (Based on | MSA) | Freq. Percent Cum. ------------+----------------------------------- 0 | 3,172 31.72 31.72 1 | 6,828 68.28 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015