For research purposes, discontinued tables remain available.
G3 Registered Banks; summary of selected aggregate financial data with the change to a quarterly more informative format, this table has been discontinued in the old format. The last observation provided is December 2008.
The data are also published in the discontinued format by the OECD in their publication called Bank Profitability - Financial Statements of Banks. It includes similar information for other OECD countries. You can order a copy of this publication from the OECD website.