Final answer:
The number of proficiency awards given at the 2012 National FFA Convention is not provided here; students should consult official National FFA Organization resources or archives for this historical information.
Step-by-step explanation:
The question regarding the number of proficiency awards to be awarded at the 2012 National FFA Convention is specific to a past event, and such information would typically be acquired from historical records or press releases related to the event.
However, as a platform designed to assist with educational inquiries and due to the nature of the question being tied to a specific past event, it is recommended that students refer to the National FFA Organization's official resources or archives for the most accurate and detailed information on the awards presented in 2012. Proficiency awards in the context of the FFA (Future Farmers of America) demonstrate excellence in a Supervised Agricultural Experience (SAE) program, where students are recognized for exceptional accomplishments in their chosen field of agricultural education.