Quarter	US dollars
2004-12-31	171
2005-03-31	55
2005-06-30	95
2005-09-30	85
2005-12-31	124
2006-03-31	137
2006-06-30	176
2006-09-30	222
2006-12-31	262
2007-03-31	288
2007-06-30	161
2007-09-30	393
2007-12-31	480
2008-03-31	519
2008-06-30	428
2008-09-30	323
2008-12-31	236
2009-03-31	172
2009-06-30	165
2009-09-30	98
2009-12-31	69
2010-03-31	102
2010-06-30	64
2010-09-30	276
2010-12-31	523
2011-03-31	423
2011-06-30	397
2011-09-30	335
2011-12-31	424
2012-03-31	376
2012-06-30	717
2012-09-30	1101
2012-12-31	1049
2013-03-31	806
2013-06-30	921
2013-09-30	983
2013-12-31	1064
2014-03-31	272
2014-06-30	280
2014-09-30	256
2014-12-31	325
2015-03-31	408
2015-06-30	318
2015-09-30	356
2015-12-31	316
2016-03-31	316
2016-06-30	302
2016-09-30	217
2016-12-31	183
2017-03-31	168
2017-06-30	320
2017-09-30	260
2017-12-31	578
2018-03-31	498
2018-06-30	438
2018-09-30	533
2018-12-31	183
2019-03-31	173
2019-06-30	109
2019-09-30	182
2019-12-31	128
2020-03-31	170
2020-06-30	315
2020-09-30	181
2020-12-31	364
2021-03-31	302
2021-06-30	528
2021-09-30	305
2021-12-31	321
2022-03-31	832
2022-06-30	240
2022-09-30	66
2022-12-31	208
2023-03-31	110
2023-06-30	96
2023-09-30	36