Quarter	US dollars
2004-12-31	61
2005-03-31	59
2005-06-30	56
2005-09-30	11
2005-12-31	39
2006-03-31	42
2006-06-30	362
2006-09-30	523
2006-12-31	912
2007-03-31	1620
2007-06-30	3618
2007-09-30	3596
2007-12-31	2956
2008-03-31	2965
2008-06-30	2607
2008-09-30	1534
2008-12-31	1118
2009-03-31	947
2009-06-30	858
2009-09-30	697
2009-12-31	848
2010-03-31	959
2010-06-30	1706
2010-09-30	1938
2010-12-31	4667
2011-03-31	4238
2011-06-30	3966
2011-09-30	4493
2011-12-31	4796
2012-03-31	20071
2012-06-30	19383
2012-09-30	18032
2012-12-31	23107
2013-03-31	43125
2013-06-30	43126
2013-09-30	39327
2013-12-31	26937
2014-03-31	31509
2014-06-30	28007
2014-09-30	31622
2014-12-31	33064
2015-03-31	29431
2015-06-30	30381
2015-09-30	26375
2015-12-31	23257
2016-03-31	23994
2016-06-30	20593
2016-09-30	19683
2016-12-31	18530
2017-03-31	17610
2017-06-30	16335
2017-09-30	14352
2017-12-31	13237
2018-03-31	12972
2018-06-30	12498
2018-09-30	11730
2018-12-31	10828
2019-03-31	10579
2019-06-30	10329
2019-09-30	9586
2019-12-31	8641
2020-03-31	9509
2020-06-30	8393
2020-09-30	7813
2020-12-31	7040
2021-03-31	6643
2021-06-30	6911
2021-09-30	6056
2021-12-31	6424
2022-03-31	6165
2022-06-30	5571
2022-09-30	487
2022-12-31	401
2023-03-31	350
2023-06-30	254
2023-09-30	252