Looking at voluntary payments alone, however, it’s apparent which nations have chosen to invest extra. The US, Germany, and the UK top the list, and according to the UN’s publicly available funding data, all have chosen to increase voluntary outlays since 2010.

Of the OECD’s 36 member countries and its five additional “key partners,” one third have decreased their voluntary funding between 2010 and 2017. In 2017, these 41 nations provided nearly 90% of the UN’s government-sourced revenue.

Outside the OECD, where UN contributions are lower, there can be dramatic swings in UN payments. The Solomon Islands has the greatest increase of all members: a staggering 38,710% increase over the seven-year period; that’s $1,829 to $709,796. Though, the UN’s history of poor quality data collection might explain this jump. The Vatican has increased its donations by 187%, perhaps reflecting the marginally more liberal tendencies of Pope Francis, elected to the position in 2013.

The most drastic reduction in support has come from Spain. The country’s 91% reduction in UN spending over seven years meant $665 million less for the organization.

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