Quarter	US dollars
2004-12-31	968
2005-03-31	684
2005-06-30	733
2005-09-30	3440
2005-12-31	3636
2006-03-31	2744
2006-06-30	3299
2006-09-30	2989
2006-12-31	2646
2007-03-31	2038
2007-06-30	2444
2007-09-30	2991
2007-12-31	3458
2008-03-31	4836
2008-06-30	4836
2008-09-30	3366
2008-12-31	5782
2009-03-31	4586
2009-06-30	5509
2009-09-30	4112
2009-12-31	3525
2010-03-31	3526
2010-06-30	3477
2010-09-30	5445
2010-12-31	5539
2011-03-31	4044
2011-06-30	3672
2011-09-30	5510
2011-12-31	4457
2012-03-31	3605
2012-06-30	3921
2012-09-30	3667
2012-12-31	3489
2013-03-31	2825
2013-06-30	2724
2013-09-30	2442
2013-12-31	2568
2014-03-31	2461
2014-06-30	2257
2014-09-30	2151
2014-12-31	2076
2015-03-31	2664
2015-06-30	2476
2015-09-30	2620
2015-12-31	2691
2016-03-31	2269
2016-06-30	1324
2016-09-30	2390
2016-12-31	2267
2017-03-31	1741
2017-06-30	721
2017-09-30	773
2017-12-31	1081
2018-03-31	1057
2018-06-30	771
2018-09-30	876
2018-12-31	816
2019-03-31	1212
2019-06-30	1344
2019-09-30	2755
2019-12-31	2215
2020-03-31	4017
2020-06-30	5419
2020-09-30	4963
2020-12-31	5810
2021-03-31	3848
2021-06-30	2449
2021-09-30	1702
2021-12-31	1527
2022-03-31	1902
2022-06-30	2394
2022-09-30	3535
2022-12-31	3091
2023-03-31	2864
2023-06-30	4211
2023-09-30	4267