Frequencies for first 10,000 rows of DGNSTC_RDLGY_SRVC_CD variable in pos2011 dataset : Services | Provided: | Radiology | (Diagnostic | ) | Freq. Percent Cum. ------------+----------------------------------- | 8,614 86.14 86.14 0 | 69 0.69 86.83 1 | 910 9.10 95.93 2 | 232 2.32 98.25 3 | 175 1.75 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 19 Apr 2019