Quarter	US dollars
2004-12-31	217
2005-03-31	166
2005-06-30	172
2005-09-30	233
2005-12-31	465
2006-03-31	484
2006-06-30	344
2006-09-30	260
2006-12-31	266
2007-03-31	204
2007-06-30	243
2007-09-30	244
2007-12-31	255
2008-03-31	362
2008-06-30	384
2008-09-30	360
2008-12-31	358
2009-03-31	289
2009-06-30	234
2009-09-30	293
2009-12-31	187
2010-03-31	199
2010-06-30	242
2010-09-30	165
2010-12-31	149
2011-03-31	210
2011-06-30	169
2011-09-30	146
2011-12-31	716
2012-03-31	225
2012-06-30	243
2012-09-30	203
2012-12-31	262
2013-03-31	334
2013-06-30	306
2013-09-30	282
2013-12-31	306
2014-03-31	438
2014-06-30	429
2014-09-30	391
2014-12-31	434
2015-03-31	469
2015-06-30	374
2015-09-30	24
2015-12-31	13
2016-03-31	53
2016-06-30	74
2016-09-30	88
2016-12-31	71
2017-03-31	80
2017-06-30	43
2017-09-30	35
2017-12-31	34
2018-03-31	34
2018-06-30	33
2018-09-30	33
2018-12-31	32
2019-03-31	31
2019-06-30	31
2019-09-30	31
2019-12-31	0
2020-03-31	0
2020-06-30	2
2020-09-30	1
2020-12-31	4
2021-03-31	14
2021-06-30	12
2021-09-30	8
2021-12-31	4
2022-03-31	3
2022-06-30	-74
2022-09-30	3
2022-12-31	14
2023-03-31	1
2023-06-30	5
2023-09-30	1