Quarter	US dollars
2004-12-31	739
2005-03-31	3469
2005-06-30	1097
2005-09-30	1056
2005-12-31	1190
2006-03-31	1101
2006-06-30	1655
2006-09-30	1416
2006-12-31	1806
2007-03-31	2620
2007-06-30	2193
2007-09-30	1561
2007-12-31	1282
2008-03-31	1308
2008-06-30	1839
2008-09-30	811
2008-12-31	1009
2009-03-31	2643
2009-06-30	3303
2009-09-30	1654
2009-12-31	888
2010-03-31	869
2010-06-30	1170
2010-09-30	2121
2010-12-31	910
2011-03-31	1162
2011-06-30	926
2011-09-30	757
2011-12-31	770
2012-03-31	852
2012-06-30	2910
2012-09-30	2443
2012-12-31	2491
2013-03-31	2330
2013-06-30	1923
2013-09-30	2097
2013-12-31	2521
2014-03-31	4865
2014-06-30	1997
2014-09-30	2218
2014-12-31	2093
2015-03-31	1854
2015-06-30	1763
2015-09-30	1318
2015-12-31	1602
2016-03-31	1314
2016-06-30	1708
2016-09-30	1181
2016-12-31	2814
2017-03-31	3641
2017-06-30	4113
2017-09-30	4730
2017-12-31	4118
2018-03-31	3376
2018-06-30	8773
2018-09-30	7086
2018-12-31	8267
2019-03-31	17284
2019-06-30	16554
2019-09-30	12951
2019-12-31	13662
2020-03-31	3488
2020-06-30	5049
2020-09-30	4032
2020-12-31	2357
2021-03-31	4162
2021-06-30	22354
2021-09-30	28722
2021-12-31	23327
2022-03-31	26191
2022-06-30	20446
2022-09-30	17195
2022-12-31	19531
2023-03-31	23079
2023-06-30	24877
2023-09-30	23733