Frequencies for first 10,000 rows of depress variable in namcs2011 dataset : Depression | screening | Freq. Percent Cum. ------------+----------------------------------- No | 9,843 98.43 98.43 Yes | 157 1.57 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016