Quarter	US dollars
2004-12-31	434
2005-03-31	514
2005-06-30	366
2005-09-30	476
2005-12-31	333
2006-03-31	898
2006-06-30	449
2006-09-30	1168
2006-12-31	845
2007-03-31	941
2007-06-30	700
2007-09-30	1440
2007-12-31	1195
2008-03-31	1266
2008-06-30	1001
2008-09-30	932
2008-12-31	819
2009-03-31	1188
2009-06-30	1387
2009-09-30	2153
2009-12-31	2330
2010-03-31	2783
2010-06-30	9061
2010-09-30	11159
2010-12-31	14443
2011-03-31	23165
2011-06-30	19673
2011-09-30	25727
2011-12-31	21684
2012-03-31	20515
2012-06-30	31485
2012-09-30	46427
2012-12-31	57096
2013-03-31	59431
2013-06-30	54249
2013-09-30	55550
2013-12-31	53615
2014-03-31	45207
2014-06-30	35628
2014-09-30	47790
2014-12-31	36072
2015-03-31	33916
2015-06-30	36298
2015-09-30	39626
2015-12-31	37935
2016-03-31	30867
2016-06-30	43035
2016-09-30	45517
2016-12-31	39801
2017-03-31	39174
2017-06-30	41294
2017-09-30	33249
2017-12-31	39641
2018-03-31	29549
2018-06-30	28563
2018-09-30	27690
2018-12-31	29044
2019-03-31	32634
2019-06-30	22833
2019-09-30	35606
2019-12-31	41479
2020-03-31	23533
2020-06-30	36653
2020-09-30	43419
2020-12-31	55243
2021-03-31	50147
2021-06-30	44736
2021-09-30	38632
2021-12-31	54459
2022-03-31	37026
2022-06-30	18700
2022-09-30	6626
2022-12-31	10288
2023-03-31	15022
2023-06-30	18794
2023-09-30	17121