quite hard to find good numbers, but the size "thousands of tons" seems to fit. The thread starter proposed that Europa, not only France, should build more nuclear power plants, so we may even be in the tens of thousands of tons per year for the whole continent.
France has 56 nuclear plants in operation. A cursory web search puts a 1TW reactor at about 30 tonnes of processed uranium per year. 56*30=1680.