That is much faster, thank you. Ok, now that the slowness of the code is solved, i come back to the second issue:
What i want is to extend the code so that it would summarize the activity for each month.
Any idea on how i could tell it to pull an monthly overview? I can't use the months row since it's merged and i can't use a fixed number of days since ..well, since months are different

Thank you for the help!