Top countries with the highest migrant stock

The US obviously has the highest immigrant, and increase steadyly since 1990 to 2017. The second highest country has less than half the migrant amount of the US.

Removes the US, most countries experience an increase, only Russia's immigrantion stock is steady. Saudi Arabia and Germany increase a lot exceeding Russia become the 2nd and 3rd place respectively in 2017

When looking at the immigration yearly percentage change graph, we can see immigration in Spain during 2000 to 2005 and the United Arab Emirates during 2005 to 2010 experienced a great increase, this should because of the fast-economic growth and job availability, which attracts many migrant labors seeking employment opportunities.