i would get as close to june 15th 2007 and then provide stuff from before that. even if you have stuff from 2006 and dont provide stuff for the june 15th requirement, then USCIS might think you were out of the country and could possible deny you.
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Date Sent 09/18/2012 Date Received 09/21/12
Date of Biometrics: October 24, 2012
2nd RFE update: 03/18/13 Received: 03/21/13
(asking for BC, 07 residency & HS transcript)
Date of Approval: 07/09/13 Date EAD Received: 07/13/13