"Prescribers wrote 82.5 OPR [Opioid Pain Reliever] prescriptions and 37.6 benzodiazepine prescriptions per 100 persons in the United States in 2012 (Table). LA/ER [Long-Acting or Extended Release] OPR accounted for 12.5%, and high-dose OPR accounted for 5.1% of the estimated 258.9 million OPR prescriptions written nationwide. Prescribing rates varied widely by state for all drug types. For all OPR combined, the prescribing rate in Alabama was 2.7 times the rate in Hawaii."
Leonard J. Paulozzi, MD1, Karin A. Mack, PhD2, Jason M. Hockenberry, PhD, "Vital Signs: Variation Among States in Prescribing of Opioid Pain Relievers and Benzodiazepines — United States, 2012," Morbidity and Mortality Weekly Report, July 4, 2014, US Centers for Disease Control, p. 564.