The link to the statistics page for an artist can be found on the 'Artist Details' page.  You can get to this page by clicking on the artist's name from other pages on Locker 227 that display artist names, or you can use the 'Artist Search ' page to find a particular Australian artist.  View the Artist Details page for Brett Whiteley as an example.  at the bottom of the page click on 'View' link next to 'View Statistics'.  This will take you to the statistics for the current calender year.  To view another year, click on a year at the bottom of the page.

Note that you need to be a 'Premium Member' to view the statistics.  If you need to upgrade your membership, click on 'My subscription' under the user menu.