Quarter	US dollars
2004-12-31	207
2005-03-31	170
2005-06-30	213
2005-09-30	179
2005-12-31	-407
2006-03-31	871
2006-06-30	971
2006-09-30	714
2006-12-31	982
2007-03-31	2718
2007-06-30	1475
2007-09-30	1685
2007-12-31	1276
2008-03-31	1026
2008-06-30	995
2008-09-30	1714
2008-12-31	727
2009-03-31	1647
2009-06-30	4076
2009-09-30	4201
2009-12-31	2322
2010-03-31	2892
2010-06-30	1908
2010-09-30	3175
2010-12-31	2788
2011-03-31	2611
2011-06-30	1707
2011-09-30	1452
2011-12-31	3355
2012-03-31	4545
2012-06-30	2030
2012-09-30	9042
2012-12-31	6776
2013-03-31	14252
2013-06-30	8509
2013-09-30	8308
2013-12-31	3109
2014-03-31	3288
2014-06-30	2934
2014-09-30	3837
2014-12-31	1450
2015-03-31	895
2015-06-30	480
2015-09-30	385
2015-12-31	255
2016-03-31	804
2016-06-30	222
2016-09-30	347
2016-12-31	486
2017-03-31	423
2017-06-30	1513
2017-09-30	2346
2017-12-31	1471
2018-03-31	1629
2018-06-30	401
2018-09-30	436
2018-12-31	1262
2019-03-31	1257
2019-06-30	821
2019-09-30	696
2019-12-31	667
2020-03-31	192
2020-06-30	543
2020-09-30	419
2020-12-31	1310
2021-03-31	864
2021-06-30	1179
2021-09-30	1797
2021-12-31	185
2022-03-31	222
2022-06-30	141
2022-09-30	241
2022-12-31	109
2023-03-31	111
2023-06-30	113
2023-09-30	112