Quarter	US dollars
2004-12-31	912
2005-03-31	764
2005-06-30	1226
2005-09-30	959
2005-12-31	966
2006-03-31	1096
2006-06-30	1208
2006-09-30	886
2006-12-31	1327
2007-03-31	1667
2007-06-30	1922
2007-09-30	2050
2007-12-31	2094
2008-03-31	3564
2008-06-30	4120
2008-09-30	3347
2008-12-31	7008
2009-03-31	5437
2009-06-30	3852
2009-09-30	4486
2009-12-31	3058
2010-03-31	3226
2010-06-30	4462
2010-09-30	5276
2010-12-31	3544
2011-03-31	4222
2011-06-30	3847
2011-09-30	4231
2011-12-31	3459
2012-03-31	4409
2012-06-30	4085
2012-09-30	3856
2012-12-31	3538
2013-03-31	2866
2013-06-30	2107
2013-09-30	1725
2013-12-31	1669
2014-03-31	2041
2014-06-30	1973
2014-09-30	2351
2014-12-31	2485
2015-03-31	2632
2015-06-30	1892
2015-09-30	2080
2015-12-31	1860
2016-03-31	1413
2016-06-30	2229
2016-09-30	2033
2016-12-31	1524
2017-03-31	1287
2017-06-30	1150
2017-09-30	1136
2017-12-31	1031
2018-03-31	951
2018-06-30	615
2018-09-30	956
2018-12-31	858
2019-03-31	842
2019-06-30	774
2019-09-30	944
2019-12-31	989
2020-03-31	1653
2020-06-30	1536
2020-09-30	1208
2020-12-31	1082
2021-03-31	698
2021-06-30	702
2021-09-30	578
2021-12-31	605
2022-03-31	641
2022-06-30	1061
2022-09-30	1707
2022-12-31	2332
2023-03-31	1165
2023-06-30	1068
2023-09-30	1234