Frequencies for s3_1_c9_18 variable in prds_hosp10_yr2017 dataset : Total | Subprovider | I Interns & | Residents | S300001 | 01800 | 00900 | Freq. Percent Cum. ------------+----------------------------------- 10.73 | 1 0.03 0.03 . | 3,748 99.97 100.00 ------------+----------------------------------- Total | 3,749 100.00 by Jean Roth , jroth@nber.org , 26 Oct 2018