The life-cycle costs span a period of 65 years. They start from when the design of the program started, so the development phase. These costs end when the last ship is finally disposed of and dismantled, with the resulting steel sent for recycling, if it's feasible at that time.
They span a very long period and include every cost, as I mentioned—from the development phase, which includes the design and project management; to, of course, the acquisition, so building and purchasing the ships; and their operation and maintenance over their expected lifetime of 30 years, including a mid-life refit and the disposal of the ships. They span a very long period of time.