Quarter	US dollars
2004-12-31	966
2005-03-31	682
2005-06-30	948
2005-09-30	547
2005-12-31	1384
2006-03-31	1277
2006-06-30	1616
2006-09-30	1760
2006-12-31	1861
2007-03-31	2236
2007-06-30	1982
2007-09-30	1381
2007-12-31	3928
2008-03-31	4887
2008-06-30	1895
2008-09-30	2361
2008-12-31	4487
2009-03-31	3868
2009-06-30	4017
2009-09-30	6421
2009-12-31	2616
2010-03-31	1856
2010-06-30	2570
2010-09-30	2538
2010-12-31	2513
2011-03-31	1605
2011-06-30	1826
2011-09-30	1977
2011-12-31	2044
2012-03-31	1967
2012-06-30	1645
2012-09-30	1379
2012-12-31	1559
2013-03-31	1400
2013-06-30	1188
2013-09-30	1205
2013-12-31	1010
2014-03-31	3190
2014-06-30	3395
2014-09-30	3252
2014-12-31	3329
2015-03-31	3367
2015-06-30	3158
2015-09-30	3414
2015-12-31	3078
2016-03-31	2904
2016-06-30	3075
2016-09-30	3215
2016-12-31	2794
2017-03-31	2738
2017-06-30	2352
2017-09-30	1450
2017-12-31	971
2018-03-31	1125
2018-06-30	974
2018-09-30	972
2018-12-31	1106
2019-03-31	1362
2019-06-30	1044
2019-09-30	1440
2019-12-31	1432
2020-03-31	6863
2020-06-30	2338
2020-09-30	2184
2020-12-31	3646
2021-03-31	2240
2021-06-30	2054
2021-09-30	2029
2021-12-31	2097
2022-03-31	2435
2022-06-30	3016
2022-09-30	4285
2022-12-31	2581
2023-03-31	1486
2023-06-30	1537
2023-09-30	1592