Frequencies for first 10,000 rows of noprovid variable in namcs2015 dataset : Providers | seen: no | answer to | item | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,949 99.49 99.49 1 | 51 0.51 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 25 Oct 2017