In this task, you are given a country name, and you need to return the year in which the country became independent. Independence is a nation's independence or statehood, usually after ceasing to be a group or part of another nation or state, or more rarely after the end of military occupation.
Example: Angola
Example solution: 1975
Example explanation: 1975 is the year of independence of Angola.

Problem: Marshall Islands

Solution: 1990