@AbsolutelyPatsy
wiki tells me in 1997 there was a mass of lottery funding
That was in the wake of the disastrous 1996 Atlanta games, where GB won 1 gold, 8 silvers and 6 bronzes. GB woke up to the fact that relying on athletes to try to train whilst working full or part time to fund themselves was never going to allow them to be competitive against full time professional athletes. UK Sport was created and put in place to distribute lottery funding.
There was a good BBC series about it recently - Gold Rush.