I agree with Randomo, this domain probably is worth reg fee. Also, out of curiosity, what kind of website would be developped from this domain? All I can see is a webpage that displays inflation rates of different countries and different sectors. Seeing how this domain is for ANNUAL inflation rates, that means you will have different data once every year. Not good.
Anyway, good luck with this domain. I would personally let it expire but who knows, maybe it will work.