The figure did not draw.
FIGURE 04 The take-rate reversal — the residual that falls

How to read this

still mark = grade A — an audited / settled reading. This slope is grade A, so it sits dead still.
shimmering mark = grade C — uncertain; the amplitude is the uncertainty. (Grade B sits between: a faint life.)
cyan = an independent number — an audit, a census, a court finding: held by a third party, not the party being judged.
amber = a seller-owned number — the party being judged counting its own audience, setting its own price, billing its own log. This figure is amber: Google's take rate is Google's own number.

Reduced motion: every shimmer becomes a static hatched band — denser for a softer grade — so the uncertainty is still seen, just not moving.

y — % of Google Network revenue retained by Google · x — year (zinc scaffold) — the rate a pure maximiser would only ratchet up

Google's syndicated take rate climbs from about 9% (2002) to a 24.7% peak (2006), then falls — 21.5% (2007), 21.3% (2008). A residual that reverses: a rate the seller fully controls, given back when competition for partners intensified.