Frequencies for first 10,000 rows of econdp_3 variable in mort2006 dataset : Part/line | number on | certificate | 3 | Freq. Percent Cum. ------------+----------------------------------- 1 | 113 1.13 1.13 2 | 550 5.50 6.63 3 | 1,792 17.92 24.55 4 | 31 0.31 24.86 6 | 1,642 16.42 41.28 . | 5,872 58.72 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015