Quarter	US dollars
2004-12-31	564
2005-03-31	7909
2005-06-30	1708
2005-09-30	6092
2005-12-31	1104
2006-03-31	1062
2006-06-30	4233
2006-09-30	1457
2006-12-31	2272
2007-03-31	3723
2007-06-30	8642
2007-09-30	6927
2007-12-31	5198
2008-03-31	5752
2008-06-30	8824
2008-09-30	6032
2008-12-31	3764
2009-03-31	1232
2009-06-30	3178
2009-09-30	1265
2009-12-31	6125
2010-03-31	4119
2010-06-30	3925
2010-09-30	3195
2010-12-31	3799
2011-03-31	3713
2011-06-30	3515
2011-09-30	2789
2011-12-31	2434
2012-03-31	2324
2012-06-30	2002
2012-09-30	1822
2012-12-31	1875
2013-03-31	1662
2013-06-30	937
2013-09-30	5101
2013-12-31	1894
2014-03-31	922
2014-06-30	1645
2014-09-30	2288
2014-12-31	1191
2015-03-31	968
2015-06-30	1908
2015-09-30	744
2015-12-31	705
2016-03-31	679
2016-06-30	1606
2016-09-30	634
2016-12-31	680
2017-03-31	443
2017-06-30	369
2017-09-30	597
2017-12-31	449
2018-03-31	512
2018-06-30	524
2018-09-30	406
2018-12-31	460
2019-03-31	267
2019-06-30	140
2019-09-30	287
2019-12-31	358
2020-03-31	332
2020-06-30	295
2020-09-30	229
2020-12-31	396
2021-03-31	341
2021-06-30	433
2021-09-30	387
2021-12-31	290
2022-03-31	550
2022-06-30	498
2022-09-30	224
2022-12-31	164
2023-03-31	366
2023-06-30	460
2023-09-30	498