Quarter	US dollars
2004-12-31	31
2005-03-31	32
2005-06-30	81
2005-09-30	57
2005-12-31	100
2006-03-31	99
2006-06-30	215
2006-09-30	297
2006-12-31	321
2007-03-31	410
2007-06-30	413
2007-09-30	746
2007-12-31	786
2008-03-31	1123
2008-06-30	1218
2008-09-30	2591
2008-12-31	2381
2009-03-31	727
2009-06-30	853
2009-09-30	950
2009-12-31	677
2010-03-31	887
2010-06-30	793
2010-09-30	718
2010-12-31	816
2011-03-31	1106
2011-06-30	1039
2011-09-30	947
2011-12-31	703
2012-03-31	626
2012-06-30	850
2012-09-30	698
2012-12-31	905
2013-03-31	914
2013-06-30	924
2013-09-30	988
2013-12-31	1079
2014-03-31	1029
2014-06-30	1687
2014-09-30	1817
2014-12-31	2145
2015-03-31	1673
2015-06-30	1540
2015-09-30	1428
2015-12-31	1338
2016-03-31	1311
2016-06-30	941
2016-09-30	600
2016-12-31	321
2017-03-31	293
2017-06-30	698
2017-09-30	680
2017-12-31	682
2018-03-31	857
2018-06-30	792
2018-09-30	835
2018-12-31	868
2019-03-31	825
2019-06-30	920
2019-09-30	1206
2019-12-31	1394
2020-03-31	1487
2020-06-30	1123
2020-09-30	835
2020-12-31	708
2021-03-31	789
2021-06-30	976
2021-09-30	1166
2021-12-31	1267
2022-03-31	1244
2022-06-30	1399
2022-09-30	1424
2022-12-31	1359
2023-03-31	1275
2023-06-30	1059
2023-09-30	670