Frequencies for first 10,000 rows of ip_gon variable in natlterr2015 dataset : Gonorrhea Y | Yes | Freq. Percent Cum. ------------+----------------------------------- | 1,078 10.78 10.78 N | 8,808 88.08 98.86 U | 107 1.07 99.93 Y | 7 0.07 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 20 Oct 2016