Quarter	US dollars
2004-12-31	-115
2005-03-31	-100
2005-06-30	-208
2005-09-30	-110
2005-12-31	-215
2006-03-31	-494
2006-06-30	-344
2006-09-30	-4095
2006-12-31	-4495
2007-03-31	-692
2007-06-30	-592
2007-09-30	-570
2007-12-31	-603
2008-03-31	-1159
2008-06-30	-864
2008-09-30	-699
2008-12-31	-831
2009-03-31	-914
2009-06-30	-665
2009-09-30	-688
2009-12-31	-783
2010-03-31	-667
2010-06-30	-467
2010-09-30	-561
2010-12-31	-534
2011-03-31	-407
2011-06-30	-406
2011-09-30	-368
2011-12-31	-513
2012-03-31	-296
2012-06-30	-398
2012-09-30	-388
2012-12-31	-331
2013-03-31	-339
2013-06-30	-340
2013-09-30	-402
2013-12-31	-255
2014-03-31	-240
2014-06-30	-181
2014-09-30	-195
2014-12-31	-386
2015-03-31	-194
2015-06-30	-206
2015-09-30	-188
2015-12-31	-187
2016-03-31	-168
2016-06-30	-122
2016-09-30	-116
2016-12-31	-95
2017-03-31	-74
2017-06-30	-74
2017-09-30	-79
2017-12-31	-61
2018-03-31	-65
2018-06-30	-33
2018-09-30	-31
2018-12-31	-42
2019-03-31	-38
2019-06-30	27
2019-09-30	25
2019-12-31	22
2020-03-31	24
2020-06-30	23
2020-09-30	25
2020-12-31	40
2021-03-31	39
2021-06-30	36
2021-09-30	28
2021-12-31	9
2022-03-31	29
2022-06-30	22
2022-09-30	20
2022-12-31	14
2023-03-31	16
2023-06-30	15
2023-09-30	15