Quarter	US dollars
2004-12-31	1837
2005-03-31	785
2005-06-30	893
2005-09-30	844
2005-12-31	1028
2006-03-31	1228
2006-06-30	1607
2006-09-30	1836
2006-12-31	1806
2007-03-31	2346
2007-06-30	2362
2007-09-30	2510
2007-12-31	2130
2008-03-31	2868
2008-06-30	2135
2008-09-30	1353
2008-12-31	1504
2009-03-31	1505
2009-06-30	1602
2009-09-30	1473
2009-12-31	1321
2010-03-31	1403
2010-06-30	1433
2010-09-30	1572
2010-12-31	1595
2011-03-31	1579
2011-06-30	1129
2011-09-30	1316
2011-12-31	1494
2012-03-31	1553
2012-06-30	1540
2012-09-30	1428
2012-12-31	1887
2013-03-31	1623
2013-06-30	2096
2013-09-30	1866
2013-12-31	2127
2014-03-31	2339
2014-06-30	2091
2014-09-30	1504
2014-12-31	3373
2015-03-31	2984
2015-06-30	3099
2015-09-30	3170
2015-12-31	2850
2016-03-31	3123
2016-06-30	3568
2016-09-30	3349
2016-12-31	3174
2017-03-31	3138
2017-06-30	4050
2017-09-30	3942
2017-12-31	3819
2018-03-31	3682
2018-06-30	3694
2018-09-30	3762
2018-12-31	3040
2019-03-31	3084
2019-06-30	3162
2019-09-30	3196
2019-12-31	2394
2020-03-31	3149
2020-06-30	3080
2020-09-30	3315
2020-12-31	2577
2021-03-31	2532
2021-06-30	3350
2021-09-30	3914
2021-12-31	3825
2022-03-31	3912
2022-06-30	4536
2022-09-30	4108
2022-12-31	4117
2023-03-31	4681
2023-06-30	4741
2023-09-30	4174