Quarter	US dollars
2004-12-31	2832
2005-03-31	3223
2005-06-30	3228
2005-09-30	2393
2005-12-31	1507
2006-03-31	3061
2006-06-30	2863
2006-09-30	3357
2006-12-31	5290
2007-03-31	4119
2007-06-30	4526
2007-09-30	5874
2007-12-31	5543
2008-03-31	5259
2008-06-30	5803
2008-09-30	6932
2008-12-31	3288
2009-03-31	3318
2009-06-30	3112
2009-09-30	2661
2009-12-31	1398
2010-03-31	1764
2010-06-30	2155
2010-09-30	2976
2010-12-31	2372
2011-03-31	2334
2011-06-30	1586
2011-09-30	1315
2011-12-31	1288
2012-03-31	1237
2012-06-30	900
2012-09-30	2348
2012-12-31	2786
2013-03-31	3200
2013-06-30	2983
2013-09-30	896
2013-12-31	1240
2014-03-31	1986
2014-06-30	1245
2014-09-30	1772
2014-12-31	1004
2015-03-31	1311
2015-06-30	1306
2015-09-30	641
2015-12-31	2070
2016-03-31	2863
2016-06-30	3321
2016-09-30	3292
2016-12-31	1679
2017-03-31	1084
2017-06-30	2032
2017-09-30	841
2017-12-31	731
2018-03-31	693
2018-06-30	1120
2018-09-30	1017
2018-12-31	626
2019-03-31	796
2019-06-30	232
2019-09-30	241
2019-12-31	548
2020-03-31	495
2020-06-30	1316
2020-09-30	540
2020-12-31	318
2021-03-31	1439
2021-06-30	2012
2021-09-30	2214
2021-12-31	926
2022-03-31	1033
2022-06-30	577
2022-09-30	1117
2022-12-31	1065
2023-03-31	1157
2023-06-30	647
2023-09-30	742