Quarter	US dollars
2004-12-31	960
2005-03-31	932
2005-06-30	943
2005-09-30	752
2005-12-31	683
2006-03-31	685
2006-06-30	915
2006-09-30	955
2006-12-31	1190
2007-03-31	1371
2007-06-30	1721
2007-09-30	1204
2007-12-31	1169
2008-03-31	1308
2008-06-30	1435
2008-09-30	1034
2008-12-31	1248
2009-03-31	1141
2009-06-30	1607
2009-09-30	1502
2009-12-31	1482
2010-03-31	1846
2010-06-30	1640
2010-09-30	1976
2010-12-31	2032
2011-03-31	1428
2011-06-30	2200
2011-09-30	2282
2011-12-31	2166
2012-03-31	2217
2012-06-30	2389
2012-09-30	2361
2012-12-31	2487
2013-03-31	2151
2013-06-30	2058
2013-09-30	1919
2013-12-31	1823
2014-03-31	1722
2014-06-30	1990
2014-09-30	2070
2014-12-31	1939
2015-03-31	2098
2015-06-30	1708
2015-09-30	1959
2015-12-31	1891
2016-03-31	2572
2016-06-30	2801
2016-09-30	1727
2016-12-31	1586
2017-03-31	2091
2017-06-30	1621
2017-09-30	2232
2017-12-31	2572
2018-03-31	3604
2018-06-30	3146
2018-09-30	3057
2018-12-31	4573
2019-03-31	3767
2019-06-30	3756
2019-09-30	1950
2019-12-31	2428
2020-03-31	2317
2020-06-30	2431
2020-09-30	2636
2020-12-31	2565
2021-03-31	2203
2021-06-30	2836
2021-09-30	2863
2021-12-31	3143
2022-03-31	3577
2022-06-30	3785
2022-09-30	4096
2022-12-31	3472
2023-03-31	3455
2023-06-30	3592
2023-09-30	2988