AFAICT that graph does not include money donated via the EU and only concerns military donations.

https://www.ifw-kiel.de/topics/war-against-ukraine/ukraine-support-tracker/

Broadly the EU (including member states) seems to be spending ~51bn euros supporting Ukraine (refugees, finance, weapons) vs the US at ~48bn euros.

Note that 'military donations' is also somewhat of a hard thing to put a number on. Most countries are sending rather old/surplus hardware which is being quoted at the original purchase price. It's kindof fine, but ...