Frequencies for first 10,000 rows of dgnstc_xray_onst_rsdnt_sw variable in pos2007 dataset : srv: | xray-onsite | -residents | Freq. Percent Cum. ------------+----------------------------------- | 7,522 75.22 75.22 N | 540 5.40 80.62 Y | 1,938 19.38 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017