Quarter	US dollars
2004-12-31	-776
2005-03-31	-612
2005-06-30	-814
2005-09-30	-720
2005-12-31	-4404
2006-03-31	-7271
2006-06-30	-11758
2006-09-30	-13681
2006-12-31	-18699
2007-03-31	-25891
2007-06-30	-33906
2007-09-30	-42891
2007-12-31	-49488
2008-03-31	-51472
2008-06-30	-58415
2008-09-30	-34070
2008-12-31	-34845
2009-03-31	-32579
2009-06-30	-34291
2009-09-30	-15923
2009-12-31	-16048
2010-03-31	-17557
2010-06-30	-20677
2010-09-30	-6144
2010-12-31	-5678
2011-03-31	-4904
2011-06-30	-4929
2011-09-30	-4365
2011-12-31	-3922
2012-03-31	-3874
2012-06-30	-3580
2012-09-30	-3617
2012-12-31	-1926
2013-03-31	-2122
2013-06-30	-1371
2013-09-30	-3169
2013-12-31	-3403
2014-03-31	-3785
2014-06-30	-4235
2014-09-30	-5189
2014-12-31	-3476
2015-03-31	-3378
2015-06-30	-3418
2015-09-30	-3352
2015-12-31	-2702
2016-03-31	-2487
2016-06-30	-2245
2016-09-30	-2629
2016-12-31	-2379
2017-03-31	-1591
2017-06-30	-1150
2017-09-30	-1784
2017-12-31	-1456
2018-03-31	-2258
2018-06-30	-2647
2018-09-30	-2676
2018-12-31	-2868
2019-03-31	-2715
2019-06-30	-2128
2019-09-30	-2034
2019-12-31	-2186
2020-03-31	-2195
2020-06-30	-2635
2020-09-30	-1979
2020-12-31	-1118
2021-03-31	-1145
2021-06-30	-1201
2021-09-30	-1665
2021-12-31	-1282
2022-03-31	-737
2022-06-30	-924
2022-09-30	-825
2022-12-31	-985
2023-03-31	-948
2023-06-30	-1026
2023-09-30	-789