Oman is the top country by net migration rate in the world. As of 2015, net migration rate in Oman was 65.16 per 1,000 population. The top 5 countries also includes Lebanon, Qatar, Kuwait, and Luxembourg.
The number of immigrants minus the number of emigrants over a period, divided by the person-years lived by the population of the receiving country over that period. It is expressed as net number of migrants per 1,000 population.