[OC] The Globalization of European Football – Foreign player % in Europe’s top 5 leagues, 1996-2024

Well done. I spent minimal time on “WTF am I looking at” and could jump straight to insights, because the exhibit is laid out cleanly, and is well-documented.

I know what the data is, where it came from, and what the trends are.
I like that you smoothed the curves but kept the original data in; the trends are what matter, but you “honored the data” by keeping the year-to-year noise in- without distracting too much.
The title summarizes the chart.
Callouts aid interpretation and understanding.

The two callout lines don’t really point at the relevant curves; that’s my only nitpick.

If you want to convert data into insight, this is how it’s done, folks.

I wonder when Britain left the EU