More than two years into Russia's illegal invasion, Ukraine finds itself in an increasingly precarious situation.

Republicans in the US are holding up a much-needed aid package, while Europe has been slow to deliver the support it has promised. Desperately short of both ammunition and air defences, the conflict-ravaged nation is losing ground to Vladimir Putin's troops and could be heading for defeat if it doesn't receive the support it needs. However, Ukraine still has some generous backers.

The Kiel Institute for the World Economy's Ukraine Support Tracker measures the aid nations around the world have donated to Ukraine, covering the period between 24 January 2022 and 15 January this year. Read on as we rank the countries that have given the greatest share of their respective GDPs, which reflects the strength of their support for Ukraine more effectively than their financial totals.

All dollar amounts in US dollars. GDP figures for EU nations reflect their contribution to total EU commitments.