Just to inform that with 1.8 it is still impossible to display monthly and yearly stats for me (daily and weekly are fine).
PHP Version 5.3.10 Linux serveur
memory_limit 128M
My trafic is more or less 3000 visits/day and 1.000.000 pages/month
I’m on a mutualized server, so I don’t have acces to server configuration files to increase memory limit.
I was phpMyVisit user and with the same trafic on the same server I never got this problem…