Frequencies for first 10,000 rows of educsmsa variable in natl1997 dataset : Education | of Mother | (Based on | MSA) | Freq. Percent Cum. ------------+----------------------------------- 0 | 3,095 30.95 30.95 1 | 6,905 69.05 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015