Recent? Concurrency Costs Info:
Second Report to Congress on F-35 Concurrency Costs:
House Report 112-331, Conference Report to Accompany H.R. 2055 May 2013
http://www.aviationweek.com/Portals/...20on%20F35.pdf (0.4Mb)
Graphic from above PDF: [more readable in original PDF]
& from an earlier BOGDAN briefing (URL on graphic)