Quarter	US dollars
2004-12-31	92
2005-03-31	102
2005-06-30	108
2005-09-30	124
2005-12-31	257
2006-03-31	246
2006-06-30	266
2006-09-30	265
2006-12-31	233
2007-03-31	184
2007-06-30	177
2007-09-30	126
2007-12-31	121
2008-03-31	139
2008-06-30	141
2008-09-30	153
2008-12-31	141
2009-03-31	83
2009-06-30	79
2009-09-30	83
2009-12-31	76
2010-03-31	79
2010-06-30	84
2010-09-30	55
2010-12-31	66
2011-03-31	87
2011-06-30	63
2011-09-30	87
2011-12-31	102
2012-03-31	64
2012-06-30	94
2012-09-30	103
2012-12-31	78
2013-03-31	62
2013-06-30	86
2013-09-30	130
2013-12-31	240
2014-03-31	335
2014-06-30	255
2014-09-30	392
2014-12-31	387
2015-03-31	390
2015-06-30	540
2015-09-30	473
2015-12-31	465
2016-03-31	487
2016-06-30	583
2016-09-30	596
2016-12-31	588
2017-03-31	513
2017-06-30	229
2017-09-30	389
2017-12-31	503
2018-03-31	474
2018-06-30	358
2018-09-30	438
2018-12-31	549
2019-03-31	622
2019-06-30	626
2019-09-30	578
2019-12-31	643
2020-03-31	589
2020-06-30	452
2020-09-30	540
2020-12-31	613
2021-03-31	677
2021-06-30	679
2021-09-30	746
2021-12-31	531
2022-03-31	428
2022-06-30	299
2022-09-30	336
2022-12-31	332
2023-03-31	314
2023-06-30	279
2023-09-30	249