What is the Health Score Index (HSI) designed to measure?

The HSI gives the NMMA and its members a clear, consistent, data-driven way to understand whether Discover Boating is strengthening the category of recreational boating over time, rather than relying on fragmented or anecdotal signals. It combines multiple indicators that span the initial stages of the customer journey (Reach, Inspire, Engage), into a single, trackable index.