Quarter	US dollars
2004-12-31	839
2005-03-31	900
2005-06-30	600
2005-09-30	741
2005-12-31	838
2006-03-31	579
2006-06-30	1189
2006-09-30	745
2006-12-31	703
2007-03-31	926
2007-06-30	789
2007-09-30	638
2007-12-31	693
2008-03-31	557
2008-06-30	619
2008-09-30	661
2008-12-31	1724
2009-03-31	3561
2009-06-30	3639
2009-09-30	1174
2009-12-31	1324
2010-03-31	1391
2010-06-30	2939
2010-09-30	2526
2010-12-31	2142
2011-03-31	1553