Chartered Accountants of Toronto, Ontario, Canada

Canadian - US dollar exchange rates
	2011		2010		2009		2008		2007		2006
	Closing	Average	Closing	Average	Closing	Average	Closing	Average	Closing	Average	Closing	Average
January	1.0150	0.9938	1.0693	1.0429	1.2265	1.2263	1.0038	1.0111	1.1770	1.1759	1.1390	1.1573
February	0.9714	0.9876	1.0525	1.0568	1.2723	1.2451	0.9844	0.9991	1.1698	1.1707	1.1366	1.1489
March	0.9766	0.9696	1.0158	1.0230	1.2613	1.2645	1.0265	1.0020	1.1546	1.1682	1.1680	1.1574
April	0.9582	0.9464	1.0158	1.0051	1.1930	1.2240	1.0072	1.0139	1.1101	1.1342	1.1180	1.1438
May	0.9680	0.9686	1.0435	1.0399	1.0917	1.1509	0.9930	0.9994	1.0696	1.0949	1.1015	1.1095
June	0.9767	0.9645	1.0646	1.0379	1.1630	1.1265	1.0197	1.0167	1.0654	1.0652	1.1162	1.1138
July	0.9553	0.9555	1.0283	1.0427	1.0775	1.1221	1.0240	1.0127	1.0668	1.0503	1.1316	1.1292
August	0.9828	0.9794	1.0665	1.0414	1.0950	1.0882	1.0620	1.0544	1.0562	1.0582	1.1053	1.1182
September	1.0026	1.0482	1.0290	1.0330	1.0707	1.0818	1.0642	1.0583	0.9948	1.0254	1.1177	1.1162
October			1.0202	1.0180	1.0819	1.0548	1.2045	1.1848	0.9447	0.9752	1.1231	1.1286
November			1.0266	1.0128	1.0556	1.0595	1.2370	1.2182	1.0000	0.9671	1.1422	1.1361
December			0.9946	1.0077	1.0510	1.0544	1.2180	1.2345	0.9913	1.0031	1.6540	1.1530
Average for the year				1.0299		1.1366		1.0660		1.0748		1.1341