API return non existing data

Hi
I was trying to get data for 2012 for my electricity sensors. I specify period (from 1jan to 31 dec) , units watts and resolution month.
I installed my device around September 2012 but I still get data for Jan 2012 in API response. How is it possible?
thanks

sem's picture

I tried retrieving decade data. For granularity week it looks ok . But If I request month data it's returns data for years I didn't had flukso connected yet. How can this be ?
thanks