Frequencies for first 10,000 rows of depress variable in namcs2008 dataset : depression | screening | Freq. Percent Cum. ------------+----------------------------------- no | 9,854 98.54 98.54 yes | 146 1.46 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016