Frequencies for first 10,000 rows of resint variable in nhamcsed1999 dataset : resident/in | tern seen | Freq. Percent Cum. ------------+----------------------------------- 0 | 8,670 86.70 86.70 1 | 1,330 13.30 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016