Quarter	US dollars
2004-12-31	689
2005-03-31	210
2005-06-30	618
2005-09-30	1012
2005-12-31	1207
2006-03-31	1009
2006-06-30	991
2006-09-30	1295
2006-12-31	-470
2007-03-31	271
2007-06-30	2014
2007-09-30	3726
2007-12-31	2272
2008-03-31	596
2008-06-30	1095
2008-09-30	5578
2008-12-31	792
2009-03-31	2345
2009-06-30	2969
2009-09-30	4616
2009-12-31	1508
2010-03-31	3361
2010-06-30	2611
2010-09-30	3962
2010-12-31	1578
2011-03-31	3472
2011-06-30	1230
2011-09-30	3889
2011-12-31	1365
2012-03-31	2070
2012-06-30	2516
2012-09-30	1505
2012-12-31	3235
2013-03-31	2526
2013-06-30	3487
2013-09-30	2985
2013-12-31	3016
2014-03-31	2584
2014-06-30	2431
2014-09-30	1548
2014-12-31	2820
2015-03-31	3976
2015-06-30	3300
2015-09-30	2572
2015-12-31	3613
2016-03-31	3528
2016-06-30	2778
2016-09-30	2928
2016-12-31	3034
2017-03-31	2433
2017-06-30	3171
2017-09-30	3288
2017-12-31	3203
2018-03-31	3308
2018-06-30	2965
2018-09-30	2503
2018-12-31	3056
2019-03-31	2284
2019-06-30	2707
2019-09-30	2622
2019-12-31	2785
2020-03-31	2397
2020-06-30	2264
2020-09-30	3009
2020-12-31	3964
2021-03-31	2468
2021-06-30	2717
2021-09-30	2303
2021-12-31	3108
2022-03-31	2126
2022-06-30	1918
2022-09-30	2273
2022-12-31	3322
2023-03-31	2041
2023-06-30	2544
2023-09-30	2241