Quarter	US dollars
2004-12-31	1092
2005-03-31	1089
2005-06-30	1169
2005-09-30	1083
2005-12-31	1446
2006-03-31	1776
2006-06-30	1923
2006-09-30	1751
2006-12-31	2364
2007-03-31	1850
2007-06-30	2524
2007-09-30	3056
2007-12-31	2747
2008-03-31	3230
2008-06-30	3417
2008-09-30	2794
2008-12-31	3591
2009-03-31	4093
2009-06-30	4509
2009-09-30	4350
2009-12-31	7312
2010-03-31	7053
2010-06-30	6658
2010-09-30	6990
2010-12-31	6628
2011-03-31	6824
2011-06-30	6191
2011-09-30	5870
2011-12-31	4844
2012-03-31	5472
2012-06-30	4736
2012-09-30	4433
2012-12-31	2700
2013-03-31	2500
2013-06-30	2228
2013-09-30	3731
2013-12-31	3466
2014-03-31	2931
2014-06-30	3317
2014-09-30	5864
2014-12-31	5341
2015-03-31	5648
2015-06-30	5788
2015-09-30	5892
2015-12-31	5336
2016-03-31	5563
2016-06-30	5972
2016-09-30	5691
2016-12-31	11805
2017-03-31	9019
2017-06-30	8829
2017-09-30	8423
2017-12-31	8284
2018-03-31	9496
2018-06-30	8916
2018-09-30	8753
2018-12-31	9116
2019-03-31	9379
2019-06-30	9653
2019-09-30	8322
2019-12-31	10752
2020-03-31	13236
2020-06-30	13110
2020-09-30	13420
2020-12-31	11708
2021-03-31	10773
2021-06-30	12660
2021-09-30	12440
2021-12-31	10884
2022-03-31	9432
2022-06-30	6869
2022-09-30	7047
2022-12-31	5547
2023-03-31	6189
2023-06-30	6879
2023-09-30	6505