There was nothing with which they could compare their present lives: they had nothing to go upon except Squealer’s lists of figures, which invariably demonstrated that everything was getting better and better.
There are no more uses of "invariably" in the book.
Show samples from other sources
I tell myself to go to sleep early, but I invariably end up watching television late into the night.
You better tell her we’re starting earlier. She’s invariably late.