Quarter	US dollars
2004-12-31	-365
2005-03-31	-299
2005-06-30	-242
2005-09-30	-205
2005-12-31	-227
2006-03-31	-234
2006-06-30	-257
2006-09-30	-262
2006-12-31	-237
2007-03-31	-222
2007-06-30	-253
2007-09-30	-361
2007-12-31	-370
2008-03-31	-714
2008-06-30	-939
2008-09-30	-1713
2008-12-31	-1620
2009-03-31	-1455
2009-06-30	-1737
2009-09-30	-1582
2009-12-31	-1497
2010-03-31	-1667
2010-06-30	-2554
2010-09-30	-2585
2010-12-31	-4280
2011-03-31	-2978
2011-06-30	-9460
2011-09-30	-4244
2011-12-31	-3389
2012-03-31	-2784
2012-06-30	-3123
2012-09-30	-3787
2012-12-31	-3838
2013-03-31	-3569
2013-06-30	-3429
2013-09-30	-3566
2013-12-31	-3378
2014-03-31	-555
2014-06-30	-3213
2014-09-30	-2746
2014-12-31	-2792
2015-03-31	-2509
2015-06-30	-2359
2015-09-30	-3446
2015-12-31	-2678
2016-03-31	-2184
2016-06-30	-1797
2016-09-30	-1006
2016-12-31	-1364
2017-03-31	-504
2017-06-30	-542
2017-09-30	-511
2017-12-31	-323
2018-03-31	-382
2018-06-30	-852
2018-09-30	-672
2018-12-31	-748
2019-03-31	-640
2019-06-30	-737
2019-09-30	-854
2019-12-31	-443
2020-03-31	-1048
2020-06-30	-573
2020-09-30	-265
2020-12-31	49
2021-03-31	-98
2021-06-30	-281
2021-09-30	-909
2021-12-31	-690
2022-03-31	-974
2022-06-30	-1624
2022-09-30	-3515
2022-12-31	-1628
2023-03-31	-996
2023-06-30	-914
2023-09-30	-978