Ratings artists on the site

[Сергеич]

Looked ratings site, in my opinion turned out excellent! And the information is unique, and easy to use - as you can sort by any column.

But I have a question to the administration. I can not understand nothing, there is every artist's written a date in the 3rd column and another later in the brackets. About the rating since 2001, said that a final date, the other primary. This kind of clear the last and first sale for the entire period. But in the ratings for 2 and 1 year indicated only the closing date and initial all just for 2 or 1 year less than the ultimate. Is that - all artists of the first sale was exactly 2 years or 1 year earlier than the last? Something hard to believe. What was the matter - or is it some kind of mistake?