7 out of 12 for CPI is not 7 out of 12 for inflation. Also, 7 out of 12 may be a majority of X but it’s not “most of” X.

> Does it really matter as long as you have a years worth of data including all seasons?

Using the correct words for something makes a big difference for communication. After jumping through all these hoops we understand what we each mean at this point, but it definitely didn’t need to take this much back and forth.