Frequencies for first 10,000 rows of wtreduc variable in namcs2007 dataset : weight | reduction | Freq. Percent Cum. ------------+----------------------------------- no | 9,531 95.31 95.31 yes | 469 4.69 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016