Frequencies for first 10,000 rows of pt_onst_rsdnt_sw variable in pos2003 dataset : srv: phys | ther-onsite | -residents | Freq. Percent Cum. ------------+----------------------------------- | 7,304 73.04 73.04 N | 261 2.61 75.65 Y | 2,435 24.35 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017