Quarter	US dollars
2004-12-31	248
2005-03-31	210
2005-06-30	199
2005-09-30	225
2005-12-31	151
2006-03-31	241
2006-06-30	237
2006-09-30	258
2006-12-31	237
2007-03-31	171
2007-06-30	183
2007-09-30	206
2007-12-31	301
2008-03-31	1793
2008-06-30	1582
2008-09-30	1240
2008-12-31	1085
2009-03-31	1049
2009-06-30	1107
2009-09-30	1110
2009-12-31	1040
2010-03-31	1068
2010-06-30	993
2010-09-30	781
2010-12-31	3283
2011-03-31	2619
2011-06-30	3142
2011-09-30	8822
2011-12-31	8637
2012-03-31	11044
2012-06-30	6949
2012-09-30	10079
2012-12-31	14910
2013-03-31	20250
2013-06-30	19673
2013-09-30	18879
2013-12-31	13576
2014-03-31	12351
2014-06-30	12696
2014-09-30	11254
2014-12-31	9574
2015-03-31	8285
2015-06-30	7320
2015-09-30	6327
2015-12-31	5825
2016-03-31	6122
2016-06-30	5370
2016-09-30	5154
2016-12-31	4722
2017-03-31	4786
2017-06-30	4269
2017-09-30	4109
2017-12-31	4403
2018-03-31	3661
2018-06-30	2976
2018-09-30	5741
2018-12-31	2681
2019-03-31	2684
2019-06-30	2342
2019-09-30	2138
2019-12-31	1914
2020-03-31	1769
2020-06-30	1597
2020-09-30	1561
2020-12-31	1455
2021-03-31	1424
2021-06-30	1065
2021-09-30	1065
2021-12-31	969
2022-03-31	977
2022-06-30	857
2022-09-30	895
2022-12-31	799
2023-03-31	850
2023-06-30	691
2023-09-30	652