Quarter	US dollars
2004-12-31	459
2005-03-31	454
2005-06-30	402
2005-09-30	414
2005-12-31	433
2006-03-31	474
2006-06-30	699
2006-09-30	1119
2006-12-31	1339
2007-03-31	1292
2007-06-30	1270
2007-09-30	1064
2007-12-31	1099
2008-03-31	1222
2008-06-30	1321
2008-09-30	1591
2008-12-31	1019
2009-03-31	876
2009-06-30	1080
2009-09-30	972
2009-12-31	1056
2010-03-31	1268
2010-06-30	1148
2010-09-30	1123
2010-12-31	1194
2011-03-31	1037
2011-06-30	1069
2011-09-30	1084
2011-12-31	894
2012-03-31	973
2012-06-30	990
2012-09-30	846
2012-12-31	1133
2013-03-31	1049
2013-06-30	731
2013-09-30	928
2013-12-31	694
2014-03-31	890
2014-06-30	732
2014-09-30	666
2014-12-31	585
2015-03-31	729
2015-06-30	554
2015-09-30	701
2015-12-31	704
2016-03-31	508
2016-06-30	466
2016-09-30	418
2016-12-31	518
2017-03-31	660
2017-06-30	17
2017-09-30	11
2017-12-31	1
2018-03-31	4
2018-06-30	11
2018-09-30	9
2018-12-31	33
2019-03-31	17
2019-06-30	13
2019-09-30	53
2019-12-31	38
2020-03-31	41
2020-06-30	31
2020-09-30	28
2020-12-31	29
2021-03-31	28
2021-06-30	25
2021-09-30	49
2021-12-31	24
2022-03-31	22
2022-06-30	4
2022-09-30	18
2022-12-31	13
2023-03-31	0
2023-06-30	1
2023-09-30	9