To evaluate your security performance indicators, you need to compare them with a set of standards or benchmarks. Benchmarking can help you identify best practices, learn from others' experiences, and set realistic and achievable goals. Regulatory requirements, such as the International Civil Aviation Organization (ICAO) standards and recommended practices, can serve as minimum standards that your security system must comply with. Additionally, industry averages, like the Airports Council International (ACI) airport service quality (ASQ) surveys, are useful for assessing your security performance indicators across the airport industry. Peer comparisons, like the ACI airport excellence (APEX) in security program, are helpful for airports that are similar to yours in terms of size, location, and traffic. Lastly, historical trends, like annual or quarterly reports of your own airport's security performance indicators over time, can help you measure progress.