INTEGRIS Health owns several hospitals, including INTEGRIS Baptist Medical Center, the INTEGRIS Cancer Institute of Oklahoma, and the INTEGRIS Southwest Medical Center. INTEGRIS Health operates hospitals, rehabilitation centers, physician clinics, mental health facilities, independent living centers and home health agencies located throughout much of Oklahoma. INTEGRIS Baptist Medical Center was named in U.S. News & World Report's 2012 list of Best Hospitals. INTEGRIS Baptist Medical Center ranks high-performing in the following categories: Cardiology and Heart Surgery; Diabetes and Endocrinology; Ear, Nose and Throat; Gastroenterology; Geriatrics; Nephrology; Orthopedics; Pulmonology and Urology.

Answer this question, if possible (if impossible, reply "unanswerable"): When was INTEGRIS Baptist Medical Center part of U.S News and World Reports best Hospitals list?
2012