; and (ii) data, research, or other information used to inform the determination to establish the goal. (K) A description of the current prevalence of illicit drug use in the United States, including both the availability of illicit drugs and the prevalence of substance use disorders. (L) Such other statistical data and information as the Director considers appropriate to demonstrate and assess trends relating to illicit drug use, the effects and consequences of illicit drug use (including the effects on children), supply reduction, demand reduction, drug-related law enforcement, and the implementation of the National Drug Control Strategy. (M) A systematic plan for increasing data collection to enable real time surveillance of drug control threats, developing analysis and monitoring capabilities, and identifying and addressing policy questions related to the National Drug Control Strategy and Program, which shall include— (i) a list of policy-relevant questions for which the Director and each National Drug Control Program Agency intends to develop evidence to support the National Drug Control Program and Strategy; (ii) a list of data the Director and each National Drug Control Program Agency intends to collect, use, or acquire to facilitate the use of evidence in drug control policymaking and monitoring; (iii) a list of methods and analytical approaches that may be used to develop evidence to support the National Drug Control Program and Strategy and related policy; (iv) a list of any challenges to developing evidence to support policymaking, including any barriers to accessing, collecting, or using relevant data; (v) a description of the steps the Director and the head of each National Drug Control Program Agency will take to effectuate the plan