Quarter	US dollars
2004-12-31	290
2005-03-31	2890
2005-06-30	3090
2005-09-30	3451
2005-12-31	4637
2006-03-31	4777
2006-06-30	4161
2006-09-30	3327
2006-12-31	3634
2007-03-31	3766
2007-06-30	4109
2007-09-30	4478
2007-12-31	5320
2008-03-31	4973
2008-06-30	6528
2008-09-30	5647
2008-12-31	4540
2009-03-31	4041
2009-06-30	5355
2009-09-30	4744
2009-12-31	4379
2010-03-31	4561
2010-06-30	4894
2010-09-30	5670
2010-12-31	5324
2011-03-31	1246
2011-06-30	1670
2011-09-30	1439
2011-12-31	1135
2012-03-31	1170
2012-06-30	1341
2012-09-30	1347
2012-12-31	1712
2013-03-31	1688
2013-06-30	1991
2013-09-30	1495
2013-12-31	1524
2014-03-31	2037
2014-06-30	1443
2014-09-30	1363
2014-12-31	1511
2015-03-31	1451
2015-06-30	1046
2015-09-30	1130
2015-12-31	1037
2016-03-31	1153
2016-06-30	974
2016-09-30	577
2016-12-31	685
2017-03-31	489
2017-06-30	860
2017-09-30	889
2017-12-31	773
2018-03-31	1139
2018-06-30	739
2018-09-30	571
2018-12-31	913
2019-03-31	1136
2019-06-30	896
2019-09-30	586
2019-12-31	752
2020-03-31	599
2020-06-30	740
2020-09-30	486
2020-12-31	386
2021-03-31	372
2021-06-30	1056
2021-09-30	1085
2021-12-31	856
2022-03-31	777
2022-06-30	566
2022-09-30	631
2022-12-31	538
2023-03-31	692
2023-06-30	614
2023-09-30	536