How much of that was due to inflation? Remember these numbers are nominal GDP. So if price levels doubled and nothing else changed, GDP would more or less double as consumption went up due to higher prices.

The worrying thing is there are no monetary levers available without the risk of higher inflation. And if people don't think GDP matters, its actually a very good indicator of all sorts of well being measures such as unemployment and premature deaths among other things

[EDIT] This is real GDP. I was mistaken