Quarter	US dollars
2004-12-31	881
2005-03-31	979
2005-06-30	1160
2005-09-30	1251
2005-12-31	1145
2006-03-31	1400
2006-06-30	1237
2006-09-30	1523
2006-12-31	1325
2007-03-31	1567
2007-06-30	3254
2007-09-30	2624
2007-12-31	1623
2008-03-31	1832
2008-06-30	1395
2008-09-30	1746
2008-12-31	1360
2009-03-31	1367
2009-06-30	2342
2009-09-30	2618
2009-12-31	2458
2010-03-31	4673
2010-06-30	4544
2010-09-30	5891
2010-12-31	4698
2011-03-31	5660
2011-06-30	5653
2011-09-30	5445
2011-12-31	4975
2012-03-31	5320
2012-06-30	5067
2012-09-30	4850
2012-12-31	5242
2013-03-31	5304
2013-06-30	3678
2013-09-30	3351
2013-12-31	3486
2014-03-31	3911
2014-06-30	3917
2014-09-30	3127
2014-12-31	3203
2015-03-31	3142
2015-06-30	2979
2015-09-30	2717
2015-12-31	2524
2016-03-31	3091
2016-06-30	3165
2016-09-30	3335
2016-12-31	2854
2017-03-31	4488
2017-06-30	4861
2017-09-30	5024
2017-12-31	5041
2018-03-31	5174
2018-06-30	4444
2018-09-30	4214
2018-12-31	4098
2019-03-31	4486
2019-06-30	4602
2019-09-30	4525
2019-12-31	4519
2020-03-31	4398
2020-06-30	4790
2020-09-30	4691
2020-12-31	6190
2021-03-31	6030
2021-06-30	6069
2021-09-30	6826
2021-12-31	7011
2022-03-31	6888
2022-06-30	6710
2022-09-30	6347
2022-12-31	5900
2023-03-31	6486
2023-06-30	6688
2023-09-30	6163