Quarter	US dollars
2004-12-31	17
2005-03-31	19
2005-06-30	18
2005-09-30	16
2005-12-31	12
2006-03-31	31
2006-06-30	26
2006-09-30	7
2006-12-31	20
2007-03-31	18
2007-06-30	38
2007-09-30	20
2007-12-31	14
2008-03-31	14
2008-06-30	2
2008-09-30	36
2008-12-31	12
2009-03-31	60
2009-06-30	216
2009-09-30	208
2009-12-31	199
2010-03-31	231
2010-06-30	271
2010-09-30	225
2010-12-31	305
2011-03-31	327
2011-06-30	358
2011-09-30	358
2011-12-31	303
2012-03-31	288
2012-06-30	273
2012-09-30	257
2012-12-31	289
2013-03-31	310
2013-06-30	353
2013-09-30	406
2013-12-31	453
2014-03-31	387
2014-06-30	419
2014-09-30	417
2014-12-31	393
2015-03-31	371
2015-06-30	91
2015-09-30	42
2015-12-31	-3
2016-03-31	-4
2016-06-30	1
2016-09-30	-8
2016-12-31	-9
2017-03-31	9
2017-06-30	3432
2017-09-30	3665
2017-12-31	3400
2018-03-31	3340
2018-06-30	3203
2018-09-30	3178
2018-12-31	2901
2019-03-31	2704
2019-06-30	2599
2019-09-30	2410
2019-12-31	2855
2020-03-31	2700
2020-06-30	2903
2020-09-30	2808
2020-12-31	2511
2021-03-31	3357
2021-06-30	3674
2021-09-30	3486
2021-12-31	3938
2022-03-31	3537
2022-06-30	3117
2022-09-30	2929
2022-12-31	2600
2023-03-31	2105
2023-06-30	1969
2023-09-30	2128