I would like some help geting some detailed info on the gm plany closures in Flint michigan?

I am writing a term paper on the negative affects of outsourcing. I want to begin my paper with some historical facts about Flint Michigan but i cant seem to find anything other then Michael Moore this n that

What i need to know is

What year in the 80's did gm begin thier closures

How many plants were in operation at that time

How many people were employed at these plants

How many people lost thier jobs

what was the population of the city before closures began

What was the unemployment rate during the closing period

What is the unemployment rate now

Are there still plants in operation

If so how many and how many employees

Finally what is todays population

If there is a link to a good detailed artical i would love to read it

Thanks for your time