Quarter	US dollars
2004-12-31	614
2005-03-31	1439
2005-06-30	1518
2005-09-30	1484
2005-12-31	1512
2006-03-31	2048
2006-06-30	2519
2006-09-30	3127
2006-12-31	3435
2007-03-31	3473
2007-06-30	3587
2007-09-30	5085
2007-12-31	4633
2008-03-31	4726
2008-06-30	5266
2008-09-30	5467
2008-12-31	3979
2009-03-31	3676
2009-06-30	3651
2009-09-30	3602
2009-12-31	3155
2010-03-31	3789
2010-06-30	4734
2010-09-30	4780
2010-12-31	5219
2011-03-31	4816
2011-06-30	4671
2011-09-30	6118
2011-12-31	5382
2012-03-31	6012
2012-06-30	5559
2012-09-30	5318
2012-12-31	4894
2013-03-31	9435
2013-06-30	9047
2013-09-30	7106
2013-12-31	6520
2014-03-31	6327
2014-06-30	6818
2014-09-30	6828
2014-12-31	5772
2015-03-31	6980
2015-06-30	6699
2015-09-30	6522
2015-12-31	6501
2016-03-31	6620
2016-06-30	7291
2016-09-30	7219
2016-12-31	6227
2017-03-31	5521
2017-06-30	4205
2017-09-30	4497
2017-12-31	4793
2018-03-31	4300
2018-06-30	4736
2018-09-30	5287
2018-12-31	5322
2019-03-31	6824
2019-06-30	7492
2019-09-30	9133
2019-12-31	7793
2020-03-31	7888
2020-06-30	8027
2020-09-30	8155
2020-12-31	8258
2021-03-31	8428
2021-06-30	7900
2021-09-30	7214
2021-12-31	6942
2022-03-31	7348
2022-06-30	6997
2022-09-30	8069
2022-12-31	8336
2023-03-31	8526
2023-06-30	8475
2023-09-30	8606