Frequencies for first 10,000 rows of blood_srvc_onst_nrsdnt_sw variable in pos2016 dataset : Services: | Blood | Administrat | ion On-Site | Nonre | Freq. Percent Cum. ------------+----------------------------------- | 7,585 75.85 75.85 N | 2,396 23.96 99.81 Y | 19 0.19 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 10 Jan 2017