No one can tell you if its enough except the consular that will be interviewing you.
All we know is the reference to the poverty guidelines. If you don't want us to reference to that guidelines that is made by the U.S Department of State, I don't think anyone can give you a clear answer.
Anyway, the poverty guidelines says that you need $17,500 for a family with 2 members. That's all we know and that should answer your question.
What is so hard to understand the numbers from there?
http://travel.state.gov/visa/immigrants/info/info_1327.html
However, $22,000 should be enough.
Thank you for the reply.
One more question shell I have to take my tax return if I support my self. But I do not pay my tax.