Frequencies for first 10,000 rows of econdp_2 variable in mortterr2007 dataset : Part/line | number on | certificate | 2 | Freq. Percent Cum. ------------+----------------------------------- 1 | 656 6.56 6.56 2 | 8,010 80.10 86.66 3 | 219 2.19 88.85 4 | 19 0.19 89.04 6 | 332 3.32 92.36 . | 764 7.64 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015