When was the Indian Ocean garbage patch discovered? How long does it take for the Indian Ocean garbage patch to complete a rotation? How many years has it been since #1? Is #3 less than two times #2?
Indian Ocean
The Indian Ocean garbage patch was discovered in 2010 The Indian Ocean garbage patch takes 6 years to complete a circulation 
The ocean between Africa, Asia, Australia and Antarctica (or the Southern Ocean)
Has the Indian Ocean garbage patch not completed two full rotations of debris since its discovery?