Quarter	US dollars
2004-12-31	626
2005-03-31	709
2005-06-30	572
2005-09-30	686
2005-12-31	542
2006-03-31	1107
2006-06-30	655
2006-09-30	1366
2006-12-31	1039
2007-03-31	1128
2007-06-30	885
2007-09-30	1620
2007-12-31	1370
2008-03-31	2093
2008-06-30	1166
2008-09-30	1096
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	23163
2011-06-30	19673
2011-09-30	25727
2011-12-31	21690
2012-03-31	20515
2012-06-30	31485
2012-09-30	46440
2012-12-31	57101
2013-03-31	59435
2013-06-30	54249
2013-09-30	55550
2013-12-31	53666
2014-03-31	45204
2014-06-30	35628
2014-09-30	47788
2014-12-31	36101
2015-03-31	33885
2015-06-30	36493
2015-09-30	39850
2015-12-31	38169
2016-03-31	31068
2016-06-30	43221
2016-09-30	45695
2016-12-31	39984
2017-03-31	39358
2017-06-30	41495
2017-09-30	33496
2017-12-31	39945
2018-03-31	29865
2018-06-30	29014
2018-09-30	27925
2018-12-31	29144
2019-03-31	32717
2019-06-30	22928
2019-09-30	35711
2019-12-31	41580
2020-03-31	23630
2020-06-30	36740
2020-09-30	43519
2020-12-31	55352
2021-03-31	50257
2021-06-30	44844
2021-09-30	38726
2021-12-31	54548
2022-03-31	37098
2022-06-30	18752
2022-09-30	6637
2022-12-31	10300
2023-03-31	15028
2023-06-30	18800
2023-09-30	17126