Quarter	US dollars
2004-12-31	244
2005-03-31	758
2005-06-30	672
2005-09-30	646
2005-12-31	1778
2006-03-31	1669
2006-06-30	2480
2006-09-30	1846
2006-12-31	1707
2007-03-31	2002
2007-06-30	4003
2007-09-30	3211
2007-12-31	5515
2008-03-31	3935
2008-06-30	2925
2008-09-30	3413
2008-12-31	3989
2009-03-31	2296
2009-06-30	5734
2009-09-30	6420
2009-12-31	5474
2010-03-31	7286
2010-06-30	3507
2010-09-30	6557
2010-12-31	4543
2011-03-31	4577
2011-06-30	3709
2011-09-30	4647
2011-12-31	3813
2012-03-31	2795
2012-06-30	3677
2012-09-30	1453
2012-12-31	677
2013-03-31	686
2013-06-30	752
2013-09-30	821
2013-12-31	813
2014-03-31	2908
2014-06-30	4245
2014-09-30	1271
2014-12-31	1690
2015-03-31	2836
2015-06-30	3235
2015-09-30	8761
2015-12-31	4385
2016-03-31	5314
2016-06-30	5684
2016-09-30	7767
2016-12-31	5779
2017-03-31	7283
2017-06-30	7435
2017-09-30	6057
2017-12-31	6232
2018-03-31	6796
2018-06-30	6988
2018-09-30	7572
2018-12-31	7457
2019-03-31	7372
2019-06-30	8486
2019-09-30	7070
2019-12-31	8876
2020-03-31	6825
2020-06-30	8476
2020-09-30	10267
2020-12-31	13893
2021-03-31	16213
2021-06-30	15328
2021-09-30	15113
2021-12-31	12329
2022-03-31	10328
2022-06-30	9366
2022-09-30	4931
2022-12-31	4757
2023-03-31	1806
2023-06-30	2012
2023-09-30	1445