Final answer:
Suriname has the highest East Indian population in South America at 37 percent.
Step-by-step explanation:
The South American country with the highest East Indian population is Suriname. According to the given information, 37 percent of Suriname's population is of East Indian descent. Suriname is one of the three Guianas and is known for its diverse ethnic background. Other ethnic groups in Suriname include Creole, Indonesian, African, Amerindian, Chinese, and European.