Quarter	US dollars
2004-12-31	511
2005-03-31	716
2005-06-30	256
2005-09-30	212
2005-12-31	385
2006-03-31	402
2006-06-30	1206
2006-09-30	1358
2006-12-31	1634
2007-03-31	2206
2007-06-30	1637
2007-09-30	2276
2007-12-31	1662
2008-03-31	1836
2008-06-30	2088
2008-09-30	2087
2008-12-31	1857
2009-03-31	2003
2009-06-30	2750
2009-09-30	2544
2009-12-31	2421
2010-03-31	3267
2010-06-30	3524
2010-09-30	3920
2010-12-31	6940
2011-03-31	5816
2011-06-30	6296
2011-09-30	4493
2011-12-31	4541
2012-03-31	3441
2012-06-30	4328
2012-09-30	6041
2012-12-31	7140
2013-03-31	8394
2013-06-30	8665
2013-09-30	6431
2013-12-31	6653
2014-03-31	6032
2014-06-30	5307
2014-09-30	5060
2014-12-31	4149
2015-03-31	4392
2015-06-30	5302
2015-09-30	5657
2015-12-31	5837
2016-03-31	6279
2016-06-30	6443
2016-09-30	5406
2016-12-31	5298
2017-03-31	5708
2017-06-30	5062
2017-09-30	5451
2017-12-31	4511
2018-03-31	4855
2018-06-30	5203
2018-09-30	5331
2018-12-31	4444
2019-03-31	4574
2019-06-30	2338
2019-09-30	3266
2019-12-31	2909
2020-03-31	3694
2020-06-30	4795
2020-09-30	3378
2020-12-31	2966
2021-03-31	3002
2021-06-30	2530
2021-09-30	2749
2021-12-31	2801
2022-03-31	2768
2022-06-30	2259
2022-09-30	3014
2022-12-31	3221
2023-03-31	3079
2023-06-30	2544
2023-09-30	3117