Quarter	US dollars
2004-12-31	-202
2005-03-31	-261
2005-06-30	-355
2005-09-30	-370
2005-12-31	-385
2006-03-31	-130
2006-06-30	-142
2006-09-30	-206
2006-12-31	-419
2007-03-31	-341
2007-06-30	-447
2007-09-30	-465
2007-12-31	-390
2008-03-31	-519
2008-06-30	-378
2008-09-30	-431
2008-12-31	-473
2009-03-31	-413
2009-06-30	-525
2009-09-30	-465
2009-12-31	-480
2010-03-31	-437
2010-06-30	-458
2010-09-30	-474
2010-12-31	-427
2011-03-31	-414
2011-06-30	-419
2011-09-30	-444
2011-12-31	-390
2012-03-31	-452
2012-06-30	-618
2012-09-30	-430
2012-12-31	-567
2013-03-31	-354
2013-06-30	-303
2013-09-30	-332
2013-12-31	-369
2014-03-31	-378
2014-06-30	-352
2014-09-30	-357
2014-12-31	-362
2015-03-31	-249
2015-06-30	-186
2015-09-30	-161
2015-12-31	-185
2016-03-31	-125
2016-06-30	-134
2016-09-30	113
2016-12-31	118
2017-03-31	115
2017-06-30	-145
2017-09-30	-354
2017-12-31	-400
2018-03-31	-428
2018-06-30	-424
2018-09-30	-359
2018-12-31	-243
2019-03-31	-232
2019-06-30	-280
2019-09-30	-478
2019-12-31	-511
2020-03-31	-530
2020-06-30	-525
2020-09-30	-613
2020-12-31	-651
2021-03-31	-706
2021-06-30	-694
2021-09-30	-673
2021-12-31	-619
2022-03-31	-665
2022-06-30	-699
2022-09-30	-716
2022-12-31	-673
2023-03-31	-578
2023-06-30	-569
2023-09-30	-590