Quarter	US dollars
2004-12-31	922
2005-03-31	802
2005-06-30	936
2005-09-30	861
2005-12-31	585
2006-03-31	581
2006-06-30	614
2006-09-30	450
2006-12-31	448
2007-03-31	388
2007-06-30	3178
2007-09-30	2746
2007-12-31	2907
2008-03-31	3496
2008-06-30	5011
2008-09-30	2973
2008-12-31	7405
2009-03-31	2165
2009-06-30	1115
2009-09-30	1040
2009-12-31	882
2010-03-31	1175
2010-06-30	1142
2010-09-30	1317
2010-12-31	919
2011-03-31	1104
2011-06-30	1283
2011-09-30	1648
2011-12-31	1429
2012-03-31	1181
2012-06-30	1318
2012-09-30	1461
2012-12-31	1405
2013-03-31	1198
2013-06-30	1238
2013-09-30	1198
2013-12-31	1167
2014-03-31	6172
2014-06-30	6885
2014-09-30	7059
2014-12-31	7389
2015-03-31	7663
2015-06-30	5650
2015-09-30	5753
2015-12-31	2487
2016-03-31	2854
2016-06-30	2768
2016-09-30	2094
2016-12-31	1887
2017-03-31	326
2017-06-30	243
2017-09-30	1
2017-12-31	-32
2018-03-31	-147
2018-06-30	-275
2018-09-30	-531
2018-12-31	-253
2019-03-31	-151
2019-06-30	-123
2019-09-30	-177
2019-12-31	210
2020-03-31	370
2020-06-30	-58
2020-09-30	-78
2020-12-31	-198
2021-03-31	-62
2021-06-30	-467
2021-09-30	-173
2021-12-31	-210
2022-03-31	-541
2022-06-30	-643
2022-09-30	-749
2022-12-31	-590
2023-03-31	-434
2023-06-30	-407
2023-09-30	-283