Quarter	US dollars
2004-12-31	60
2005-03-31	47
2005-06-30	18
2005-09-30	19
2005-12-31	19
2006-03-31	23
2006-06-30	17
2006-09-30	35
2006-12-31	20
2007-03-31	25
2007-06-30	26
2007-09-30	37
2007-12-31	30
2008-03-31	26
2008-06-30	46
2008-09-30	61
2008-12-31	79
2009-03-31	49
2009-06-30	54
2009-09-30	53
2009-12-31	55
2010-03-31	100
2010-06-30	94
2010-09-30	88
2010-12-31	64
2011-03-31	80
2011-06-30	177
2011-09-30	139
2011-12-31	170
2012-03-31	193
2012-06-30	157
2012-09-30	152
2012-12-31	133
2013-03-31	551
2013-06-30	552
2013-09-30	447
2013-12-31	501
2014-03-31	520
2014-06-30	468
2014-09-30	418
2014-12-31	403
2015-03-31	310
2015-06-30	308
2015-09-30	304
2015-12-31	242
2016-03-31	735
2016-06-30	743
2016-09-30	270
2016-12-31	327
2017-03-31	248
2017-06-30	214
2017-09-30	351
2017-12-31	697
2018-03-31	655
2018-06-30	615
2018-09-30	416
2018-12-31	397
2019-03-31	348
2019-06-30	312
2019-09-30	457
2019-12-31	371
2020-03-31	342
2020-06-30	399
2020-09-30	388
2020-12-31	382
2021-03-31	390
2021-06-30	506
2021-09-30	495
2021-12-31	427
2022-03-31	459
2022-06-30	423
2022-09-30	353
2022-12-31	343
2023-03-31	323
2023-06-30	255
2023-09-30	212