Hi Brian, The docs for your interview are listed here: http://manila.usembassy.gov/wwwh3217.html
Your 2011 should be enough and the 2009 is good for added support docs. I think your burden will be proving that you will have income in the future. Meaning it might be good to have a statement from your employer (or other means of proof) that will indicate what your salary will be.
hope this helps.
Miko
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