Quarter	US dollars
2004-12-31	-369
2005-03-31	-554
2005-06-30	-549
2005-09-30	-440
2005-12-31	-355
2006-03-31	-215
2006-06-30	-322
2006-09-30	-456
2006-12-31	-538
2007-03-31	-849
2007-06-30	-881
2007-09-30	-1224
2007-12-31	-1382
2008-03-31	-1793
2008-06-30	-1397
2008-09-30	-1041
2008-12-31	-630
2009-03-31	-514
2009-06-30	-937
2009-09-30	-1032
2009-12-31	-1027
2010-03-31	-1330
2010-06-30	-1779
2010-09-30	-1429
2010-12-31	-1647
2011-03-31	-1419
2011-06-30	-1792
2011-09-30	-2119
2011-12-31	-1538
2012-03-31	-1988
2012-06-30	-1399
2012-09-30	-1321
2012-12-31	-1423
2013-03-31	-1564
2013-06-30	-1470
2013-09-30	-1713
2013-12-31	-1896
2014-03-31	-1284
2014-06-30	-1599
2014-09-30	-1611
2014-12-31	-1352
2015-03-31	-1552
2015-06-30	-1180
2015-09-30	-916
2015-12-31	-763
2016-03-31	-762
2016-06-30	-725
2016-09-30	-473
2016-12-31	-160
2017-03-31	-313
2017-06-30	-895
2017-09-30	-1588
2017-12-31	-1555
2018-03-31	-1234
2018-06-30	-935
2018-09-30	-1055
2018-12-31	-1179
2019-03-31	-839
2019-06-30	-1051
2019-09-30	-1179
2019-12-31	-1379
2020-03-31	-1508
2020-06-30	-1446
2020-09-30	-1464
2020-12-31	-1765
2021-03-31	-2207
2021-06-30	-2302
2021-09-30	-2222
2021-12-31	-2070
2022-03-31	-1656
2022-06-30	-1657
2022-09-30	-2118
2022-12-31	-1554
2023-03-31	-1731
2023-06-30	-1810
2023-09-30	-1966