>>509139295
It's in thousands of euro.
It means Horn of Africa (Sudan / Somalia / Ethiopia / Djibouti / Eritrea) cost on average -606,000€ to the society, while a native Dutchman brings +95,000€ to the society.

Here's all the stats

The Long-Term Fiscal Impact of
Immigrants in the Netherlands,
Differentiated by Motive, Source Region
and Generation
>https://docs.iza.org/dp17569.pdf