Quarter	US dollars
2004-12-31	954
2005-03-31	1102
2005-06-30	1554
2005-09-30	1420
2005-12-31	1418
2006-03-31	1001
2006-06-30	1063
2006-09-30	1181
2006-12-31	1288
2007-03-31	1414
2007-06-30	955
2007-09-30	1231
2007-12-31	1621
2008-03-31	2139
2008-06-30	2223
2008-09-30	1834
2008-12-31	1936
2009-03-31	1584
2009-06-30	1225
2009-09-30	1190
2009-12-31	1269
2010-03-31	1433
2010-06-30	2599
2010-09-30	2470
2010-12-31	2782
2011-03-31	3826
2011-06-30	3516
2011-09-30	3298
2011-12-31	3593
2012-03-31	3044
2012-06-30	3263
2012-09-30	3472
2012-12-31	3017
2013-03-31	2503
2013-06-30	3482
2013-09-30	4610
2013-12-31	4297
2014-03-31	3500
2014-06-30	3471
2014-09-30	3583
2014-12-31	3673
2015-03-31	3508
2015-06-30	3979
2015-09-30	4281
2015-12-31	3041
2016-03-31	2086
2016-06-30	2637
2016-09-30	3266
2016-12-31	2459
2017-03-31	1647
2017-06-30	3107
2017-09-30	2702
2017-12-31	2370
2018-03-31	2015
2018-06-30	2472
2018-09-30	1787
2018-12-31	1661
2019-03-31	1353
2019-06-30	1835
2019-09-30	1703
2019-12-31	1720
2020-03-31	1568
2020-06-30	1309
2020-09-30	1847
2020-12-31	1963
2021-03-31	1553
2021-06-30	2782
2021-09-30	2337
2021-12-31	1330
2022-03-31	1316
2022-06-30	2571
2022-09-30	2532
2022-12-31	1246
2023-03-31	1038
2023-06-30	2127
2023-09-30	2195