Quarter	US dollars
2004-12-31	38
2005-03-31	42
2005-06-30	50
2005-09-30	44
2005-12-31	55
2006-03-31	52
2006-06-30	91
2006-09-30	135
2006-12-31	100
2007-03-31	102
2007-06-30	177
2007-09-30	244
2007-12-31	307
2008-03-31	415
2008-06-30	306
2008-09-30	904
2008-12-31	781
2009-03-31	615
2009-06-30	758
2009-09-30	800
2009-12-31	434
2010-03-31	423
2010-06-30	492
2010-09-30	498
2010-12-31	424
2011-03-31	433
2011-06-30	369
2011-09-30	355
2011-12-31	405
2012-03-31	356
2012-06-30	232
2012-09-30	216
2012-12-31	239
2013-03-31	211
2013-06-30	177
2013-09-30	133
2013-12-31	155
2014-03-31	307
2014-06-30	215
2014-09-30	470
2014-12-31	979
2015-03-31	503
2015-06-30	440
2015-09-30	436
2015-12-31	393
2016-03-31	273
2016-06-30	252
2016-09-30	242
2016-12-31	26
2017-03-31	25
2017-06-30	29
2017-09-30	20
2017-12-31	22
2018-03-31	24
2018-06-30	26
2018-09-30	33
2018-12-31	97
2019-03-31	46
2019-06-30	52
2019-09-30	85
2019-12-31	90
2020-03-31	108
2020-06-30	75
2020-09-30	21
2020-12-31	14
2021-03-31	10
2021-06-30	10
2021-09-30	96
2021-12-31	98
2022-03-31	100
2022-06-30	97
2022-09-30	16
2022-12-31	17
2023-03-31	14
2023-06-30	11
2023-09-30	8