Revenues related to the commercial aerospace sector greatly outpaced declines in the defense sector in 2012 as the global aerospace and defense market shifts toward parity between the two sectors, according to a new study by Deloitte. Deloitte says that commercial aircraft segment revenues increased $38.4 billion, or 16 percent, in 2012, while defense segment sales fell $4.4 billion, or just more than 1 percent. Overall global aerospace and defense revenues climbed nearly $39 billion, or 6 percent, in 2012…