Quarter	US dollars
2004-12-31	922
2005-03-31	660
2005-06-30	980
2005-09-30	1643
2005-12-31	1634
2006-03-31	4116
2006-06-30	3114
2006-09-30	1932
2006-12-31	1798
2007-03-31	2348
2007-06-30	1625
2007-09-30	4497
2007-12-31	4585
2008-03-31	4237
2008-06-30	3453
2008-09-30	3737
2008-12-31	2892
2009-03-31	2624
2009-06-30	3093
2009-09-30	4265
2009-12-31	2413
2010-03-31	2641
2010-06-30	2277
2010-09-30	3170
2010-12-31	3070
2011-03-31	2459
2011-06-30	3568
2011-09-30	4323
2011-12-31	5085
2012-03-31	6476
2012-06-30	5856
2012-09-30	4100
2012-12-31	3502
2013-03-31	3431
2013-06-30	3176
2013-09-30	3658
2013-12-31	3757
2014-03-31	2599
2014-06-30	3096
2014-09-30	3336
2014-12-31	2141
2015-03-31	3036
2015-06-30	2597
2015-09-30	2857
2015-12-31	2501
2016-03-31	3124
2016-06-30	3637
2016-09-30	3566
2016-12-31	3130
2017-03-31	3369
2017-06-30	4245
2017-09-30	4529
2017-12-31	4121
2018-03-31	3992
2018-06-30	2716
2018-09-30	3035
2018-12-31	4582
2019-03-31	4924
2019-06-30	5644
2019-09-30	5546
2019-12-31	5251
2020-03-31	3555
2020-06-30	2432
2020-09-30	2721
2020-12-31	2937
2021-03-31	1755
2021-06-30	2120
2021-09-30	2824
2021-12-31	2596
2022-03-31	3218
2022-06-30	3430
2022-09-30	4336
2022-12-31	5274
2023-03-31	3945
2023-06-30	4271
2023-09-30	3858