How many weather pulls flow through the proxy, and how many of those Netlify has to forward to aviationweather.gov — the rest are served straight from the edge cache, never touching AWC. Plus what all of this costs against the Netlify free tier.
Each bar's full height is every pull that reached the proxy in that slot. The orange part is the share Netlify forwarded to AWC on a cache miss; the blue part the edge served for free.