If you mean the number of actuations the shutter is expected to last, both the D7000 and D7100 are stated to be "tested for 150,000 cycles" by Nikon. This is not a guarantee, just an expected lifetime.
thank you very much indeed , you are great, by the way I want to sell my old D90, and it is at 49700 shutters now. People are asking about it too. What about its minimum actuation number ? Do you know it too ? regards