Quarter	US dollars
2004-12-31	355
2005-03-31	410
2005-06-30	351
2005-09-30	306
2005-12-31	268
2006-03-31	333
2006-06-30	523
2006-09-30	568
2006-12-31	626
2007-03-31	433
2007-06-30	564
2007-09-30	487
2007-12-31	267
2008-03-31	304
2008-06-30	418
2008-09-30	925
2008-12-31	568
2009-03-31	341
2009-06-30	354
2009-09-30	457
2009-12-31	460
2010-03-31	417
2010-06-30	525
2010-09-30	496
2010-12-31	689
2011-03-31	769
2011-06-30	788
2011-09-30	516
2011-12-31	516
2012-03-31	558
2012-06-30	403
2012-09-30	444
2012-12-31	428
2013-03-31	269
2013-06-30	369
2013-09-30	285
2013-12-31	226
2014-03-31	255
2014-06-30	287
2014-09-30	511
2014-12-31	317
2015-03-31	151
2015-06-30	149
2015-09-30	130
2015-12-31	92
2016-03-31	85
2016-06-30	89
2016-09-30	66
2016-12-31	53
2017-03-31	51
2017-06-30	51
2017-09-30	59
2017-12-31	46
2018-03-31	39
2018-06-30	29
2018-09-30	33
2018-12-31	31
2019-03-31	23
2019-06-30	22
2019-09-30	18
2019-12-31	16
2020-03-31	17
2020-06-30	17
2020-09-30	16
2020-12-31	12
2021-03-31	11
2021-06-30	12
2021-09-30	26
2021-12-31	51
2022-03-31	42
2022-06-30	41
2022-09-30	7
2022-12-31	27
2023-03-31	6
2023-06-30	5
2023-09-30	4