VirtueMart products module - Best sales since when?

[user_fra]

Hi,
(VirtueMart 3.8.
please, could someone tell me which period is taken into account for the calculation of the best-selling products?
Since the beginning... last year or...?
Thank you, regards
Francesco

[GJC Web Design]

from the beginning  .. there is no time period

case 'topten':
               $orderBy = 'ORDER BY p.`product_sales` DESC, p.`virtuemart_product_id` DESC';

[user_fra]

Thank you,
I use RO CSVI extension to create Virtuemart reports, but results are different from VirtueMart products module - Best sales, that's why I asked here in the forum.
Is it possible the module considers the total amount of sales and not the number of sales?
Thank you
Francesco