Quarter	US dollars
2004-12-31	100
2005-03-31	87
2005-06-30	109
2005-09-30	120
2005-12-31	106
2006-03-31	101
2006-06-30	142
2006-09-30	131
2006-12-31	190
2007-03-31	341
2007-06-30	199
2007-09-30	118
2007-12-31	90
2008-03-31	187
2008-06-30	229
2008-09-30	116
2008-12-31	1508
2009-03-31	2663
2009-06-30	2630
2009-09-30	486
2009-12-31	221
2010-03-31	1060
2010-06-30	2294
2010-09-30	2291
2010-12-31	1664
2011-03-31	1281