Quarter	US dollars
2004-12-31	357
2005-03-31	233
2005-06-30	256
2005-09-30	202
2005-12-31	189
2006-03-31	168
2006-06-30	165
2006-09-30	125
2006-12-31	114
2007-03-31	92
2007-06-30	50
2007-09-30	77
2007-12-31	145
2008-03-31	221
2008-06-30	105
2008-09-30	110
2008-12-31	380
2009-03-31	224
2009-06-30	148
2009-09-30	181
2009-12-31	140
2010-03-31	153
2010-06-30	187
2010-09-30	257
2010-12-31	474
2011-03-31	281
2011-06-30	379
2011-09-30	464
2011-12-31	229
2012-03-31	187
2012-06-30	191
2012-09-30	255
2012-12-31	131
2013-03-31	82
2013-06-30	281
2013-09-30	296
2013-12-31	339
2014-03-31	212
2014-06-30	275
2014-09-30	655
2014-12-31	548
2015-03-31	1125
2015-06-30	936
2015-09-30	560
2015-12-31	934
2016-03-31	-535
2016-06-30	-1058
2016-09-30	-1254
2016-12-31	2036
2017-03-31	644
2017-06-30	513
2017-09-30	378
2017-12-31	23
2018-03-31	351
2018-06-30	-26
2018-09-30	306
2018-12-31	1
2019-03-31	356
2019-06-30	-173
2019-09-30	-188
2019-12-31	272
2020-03-31	-322
2020-06-30	924
2020-09-30	697
2020-12-31	752
2021-03-31	319
2021-06-30	387
2021-09-30	316
2021-12-31	263
2022-03-31	95
2022-06-30	62
2022-09-30	-62
2022-12-31	174
2023-03-31	536
2023-06-30	426
2023-09-30	616