I studied 3 extra years.
Also not much more than $1.2k 
Eagle, come here to 骗 little kids
leh.
Eagle is earning about 3.5 times that of $1.2 k
ie TS get about $100 for 1 year of study for the 13 years
of education and Eagle
gets $1,100 more for each extra year of
study for his 3 extra years of study.
Somemore, he got many other lobangs ie sources of incomes ie
tuition, investment in stocks, writing etc and he once wrote in the
forum that his other sources of incomes are more than his monthly
salary as a professional engineer.