Statista is an online statistics, market research and business intelligence portal. It provides access to data from market and opinion research institutions, as well as from business organizations and government institutions.
Most information is available only to subscribers, but it may worth a visit. Jane's is generally recognized as the best source for defence, aerospace and transportation information. Site is searchable.
"...a comprehensive website devoted to international military education outreach. It represents a consortium of military education research libraries that work together to provide access to a variety of unique electronic resources for the use of researchers and scholars."
Note: Due to licensing agreements, some databases are available only to students, staff, faculty and alumni of the participating institutions.