Quarter	US dollars
2004-12-31	17
2005-03-31	127
2005-06-30	90
2005-09-30	154
2005-12-31	160
2006-03-31	167
2006-06-30	172
2006-09-30	200
2006-12-31	280
2007-03-31	294
2007-06-30	205
2007-09-30	163
2007-12-31	269
2008-03-31	511
2008-06-30	444
2008-09-30	394
2008-12-31	145
2009-03-31	150
2009-06-30	183
2009-09-30	181
2009-12-31	150
2010-03-31	311
2010-06-30	277
2010-09-30	310
2010-12-31	236
2011-03-31	406
2011-06-30	422
2011-09-30	430
2011-12-31	363
2012-03-31	374
2012-06-30	364
2012-09-30	396
2012-12-31	289
2013-03-31	352
2013-06-30	358
2013-09-30	411
2013-12-31	441
2014-03-31	479
2014-06-30	566
2014-09-30	535
2014-12-31	571
2015-03-31	546
2015-06-30	516
2015-09-30	442
2015-12-31	351
2016-03-31	326
2016-06-30	330
2016-09-30	272
2016-12-31	378
2017-03-31	340
2017-06-30	4
2017-09-30	17
2017-12-31	-15
2018-03-31	-3
2018-06-30	11
2018-09-30	0
2018-12-31	9
2019-03-31	-3
2019-06-30	-38
2019-09-30	-10
2019-12-31	-54
2020-03-31	5
2020-06-30	21
2020-09-30	-6
2020-12-31	11
2021-03-31	0
2021-06-30	-46
2021-09-30	4
2021-12-31	3
2022-03-31	-9
2022-06-30	0
2022-09-30	9
2022-12-31	9
2023-03-31	6
2023-06-30	4
2023-09-30	17