% of total divorces in the US with household incomes of $50,000 or
more using most recent year statistical information is available.

Dear stangol-ga,

The current divorce rate is 3.6 per 1000 people in the US as of April
2006 (http://www.cdc.gov/nchs/data/nvsr/nvsr55/nvsr55_05.pdf)

That decreases by 30% with a household income over $50,000 according
to the site listed below.
http://divorce.lovetoknow.com/Divorce_Statistics

That takes it to 2.52 divorces per 1000 people.

Google Search
Divorce Stats 2006
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=divorce%20stats%202006&btnG=Google+Search

If this answer requires further explanation, please request
clarification before rating it, and I'll be happy to look into this
further.

Nenna-GA
Google Answers Researcher