Quarter	US dollars
2004-12-31	1307
2005-03-31	1174
2005-06-30	936
2005-09-30	945
2005-12-31	946
2006-03-31	980
2006-06-30	871
2006-09-30	1134
2006-12-31	1433
2007-03-31	1493
2007-06-30	1611
2007-09-30	2117
2007-12-31	1756
2008-03-31	3432
2008-06-30	4237
2008-09-30	3905
2008-12-31	2905
2009-03-31	3239
2009-06-30	3839
2009-09-30	3629
2009-12-31	3884
2010-03-31	4247
2010-06-30	4083
2010-09-30	5067
2010-12-31	5058
2011-03-31	5205
2011-06-30	5554
2011-09-30	5406
2011-12-31	5725
2012-03-31	6581
2012-06-30	6097
2012-09-30	6487
2012-12-31	5917
2013-03-31	5684
2013-06-30	5792
2013-09-30	6521
2013-12-31	6768
2014-03-31	7456
2014-06-30	7167
2014-09-30	7149
2014-12-31	7086
2015-03-31	7612
2015-06-30	6551
2015-09-30	6624
2015-12-31	5868
2016-03-31	6259
2016-06-30	6966
2016-09-30	6996
2016-12-31	5630
2017-03-31	5546
2017-06-30	5141
2017-09-30	5525
2017-12-31	5820
2018-03-31	5675
2018-06-30	5219
2018-09-30	5482
2018-12-31	5136
2019-03-31	6003
2019-06-30	5934
2019-09-30	5103
2019-12-31	4781
2020-03-31	5527
2020-06-30	4797
2020-09-30	4968
2020-12-31	4264
2021-03-31	4565
2021-06-30	4520
2021-09-30	4342
2021-12-31	5306
2022-03-31	5231
2022-06-30	4312
2022-09-30	5133
2022-12-31	5039
2023-03-31	4879
2023-06-30	4398
2023-09-30	4509