Quarter	US dollars
2004-12-31	-670
2005-03-31	-418
2005-06-30	-740
2005-09-30	-787
2005-12-31	-1198
2006-03-31	-1296
2006-06-30	-1616
2006-09-30	-1915
2006-12-31	-2186
2007-03-31	-4334
2007-06-30	-4547
2007-09-30	-4969
2007-12-31	-5332
2008-03-31	-3931
2008-06-30	-4681
2008-09-30	-4919
2008-12-31	-4025
2009-03-31	-4040
2009-06-30	-4315
2009-09-30	-2652
2009-12-31	-2041
2010-03-31	-1677
2010-06-30	-3081
2010-09-30	-2384
2010-12-31	-2236
2011-03-31	-2142
2011-06-30	-2031
2011-09-30	-1854
2011-12-31	-1413
2012-03-31	-1355
2012-06-30	-1098
2012-09-30	-1650
2012-12-31	-443
2013-03-31	-800
2013-06-30	-126
2013-09-30	-1615
2013-12-31	-1954
2014-03-31	-2391
2014-06-30	-2455
2014-09-30	-2646
2014-12-31	-656
2015-03-31	-612
2015-06-30	-602
2015-09-30	-438
2015-12-31	-162
2016-03-31	-188
2016-06-30	115
2016-09-30	-279
2016-12-31	133
2017-03-31	34
2017-06-30	694
2017-09-30	661
2017-12-31	875
2018-03-31	8
2018-06-30	114
2018-09-30	-63
2018-12-31	-147
2019-03-31	90
2019-06-30	407
2019-09-30	341
2019-12-31	321
2020-03-31	482
2020-06-30	-33
2020-09-30	79
2020-12-31	-330
2021-03-31	-312
2021-06-30	-301
2021-09-30	-260
2021-12-31	-360
2022-03-31	-620
2022-06-30	-508
2022-09-30	-406
2022-12-31	-939
2023-03-31	-879
2023-06-30	-939
2023-09-30	-800