How many years did 'Guns and roses' sing about?

They are together since 1985 but they have change all of their members only Axl Rose haven't gone yet.

The most of the other ex-members of Guns 'N'Roses are at a new band Velvet Revolver.

We don't know where the other ex-members are.

We don't know anything about them after Guns 'N'Roses.