Quarter	US dollars
2004-12-31	395
2005-03-31	501
2005-06-30	484
2005-09-30	580
2005-12-31	676
2006-03-31	911
2006-06-30	932
2006-09-30	1041
2006-12-31	1059
2007-03-31	1081
2007-06-30	1098
2007-09-30	1557
2007-12-31	1304
2008-03-31	1469
2008-06-30	1403
2008-09-30	1367
2008-12-31	1458
2009-03-31	1718
2009-06-30	1579
2009-09-30	1516
2009-12-31	1471
2010-03-31	1649
2010-06-30	1561
2010-09-30	2015
2010-12-31	1733
2011-03-31	1565
2011-06-30	777
2011-09-30	802
2011-12-31	671
2012-03-31	625
2012-06-30	703
2012-09-30	673
2012-12-31	875
2013-03-31	1022
2013-06-30	975
2013-09-30	845
2013-12-31	853
2014-03-31	814
2014-06-30	810
2014-09-30	806
2014-12-31	936
2015-03-31	830
2015-06-30	766
2015-09-30	679
2015-12-31	665
2016-03-31	771
2016-06-30	667
2016-09-30	644
2016-12-31	630
2017-03-31	500
2017-06-30	134
2017-09-30	158
2017-12-31	278
2018-03-31	184
2018-06-30	203
2018-09-30	158
2018-12-31	163
2019-03-31	154
2019-06-30	123
2019-09-30	113
2019-12-31	137
2020-03-31	107
2020-06-30	136
2020-09-30	143
2020-12-31	136
2021-03-31	181
2021-06-30	134
2021-09-30	193
2021-12-31	617
2022-03-31	229
2022-06-30	150
2022-09-30	102
2022-12-31	96
2023-03-31	102
2023-06-30	118
2023-09-30	188