Outstanding as at:	Sept. 30, 2006	August 31, 2006	August 31, 2005
Class A shares	49,850,416	49,848,066	51,714,927
Class B shares	3,094,822	3,094,822	3,240,622
Special shares	65,000	65,000	65,000
Employee stock options	2,837,947	2,840,297	3,329,714
Restricted share units	313,502	313,502	205,219