Quarter	US dollars
2004-12-31	831
2005-03-31	1786
2005-06-30	1895
2005-09-30	1664
2005-12-31	1339
2006-03-31	1167
2006-06-30	1282
2006-09-30	1263
2006-12-31	2206
2007-03-31	2050
2007-06-30	1824
2007-09-30	1948
2007-12-31	2073
2008-03-31	2288
2008-06-30	3302
2008-09-30	4429
2008-12-31	4597
2009-03-31	3786
2009-06-30	3155
2009-09-30	2992
2009-12-31	3377
2010-03-31	3114
2010-06-30	5219
2010-09-30	8317
2010-12-31	8173
2011-03-31	8531
2011-06-30	9642
2011-09-30	5400
2011-12-31	5464
2012-03-31	6805
2012-06-30	6720
2012-09-30	9102
2012-12-31	6228
2013-03-31	6712
2013-06-30	6720
2013-09-30	7440
2013-12-31	7327
2014-03-31	5902
2014-06-30	8107
2014-09-30	9361
2014-12-31	7561
2015-03-31	6346
2015-06-30	6767
2015-09-30	7112
2015-12-31	6125
2016-03-31	6351
2016-06-30	5501
2016-09-30	6053
2016-12-31	5936
2017-03-31	4901
2017-06-30	6530
2017-09-30	7945
2017-12-31	7263
2018-03-31	6760
2018-06-30	8648
2018-09-30	8302
2018-12-31	7970
2019-03-31	8142
2019-06-30	8656
2019-09-30	10227
2019-12-31	8921
2020-03-31	11094
2020-06-30	11813
2020-09-30	10669
2020-12-31	10761
2021-03-31	11693
2021-06-30	11844
2021-09-30	10689
2021-12-31	10353
2022-03-31	11153
2022-06-30	10438
2022-09-30	8196
2022-12-31	6358
2023-03-31	5848
2023-06-30	8022
2023-09-30	12559