Quarter	US dollars
2004-12-31	440
2005-03-31	465
2005-06-30	466
2005-09-30	460
2005-12-31	548
2006-03-31	645
2006-06-30	825
2006-09-30	953
2006-12-31	820
2007-03-31	861
2007-06-30	943
2007-09-30	2133
2007-12-31	1384
2008-03-31	1872
2008-06-30	2084
2008-09-30	2176
2008-12-31	1895
2009-03-31	2266
2009-06-30	2194
2009-09-30	1639
2009-12-31	1765
2010-03-31	1668
2010-06-30	2096
2010-09-30	2012
2010-12-31	1908
2011-03-31	1726
2011-06-30	2270
2011-09-30	1787
2011-12-31	2508
2012-03-31	2344
2012-06-30	3023
2012-09-30	2495
2012-12-31	2247
2013-03-31	3047
2013-06-30	2994
2013-09-30	3419
2013-12-31	5319
2014-03-31	2401
2014-06-30	3101
2014-09-30	3041
2014-12-31	2848
2015-03-31	2471
2015-06-30	2186
2015-09-30	1789
2015-12-31	1454
2016-03-31	1318
2016-06-30	1491
2016-09-30	1545
2016-12-31	1882
2017-03-31	1586
2017-06-30	859
2017-09-30	1217
2017-12-31	1019
2018-03-31	1725
2018-06-30	1744
2018-09-30	2096
2018-12-31	2024
2019-03-31	1285
2019-06-30	1230
2019-09-30	1207
2019-12-31	991
2020-03-31	810
2020-06-30	814
2020-09-30	1289
2020-12-31	1046
2021-03-31	1055
2021-06-30	1104
2021-09-30	1010
2021-12-31	1311
2022-03-31	1017
2022-06-30	857
2022-09-30	832
2022-12-31	632
2023-03-31	820
2023-06-30	1029
2023-09-30	886