What is the souk size for products and services contained by the United States?

Specifically, what is the souk size within the US for:
1. Physical Products
(ie: $x.xx/year)
2. Services
(ie: $x.xx/year)

Please cite your source.

Extra credit: What is The World open market for products and services?

Answers:
This is information you will inevitability to wage a flea market research firm for. Here's a schedule of the foremost ones.

http://www.knowthis.com/research/majorfi...

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