Quarter	US dollars
2004-12-31	1448
2005-03-31	2197
2005-06-30	1796
2005-09-30	1716
2005-12-31	968
2006-03-31	2312
2006-06-30	3257
2006-09-30	3168
2006-12-31	2356
2007-03-31	961
2007-06-30	1413
2007-09-30	831
2007-12-31	1501
2008-03-31	6461
2008-06-30	2324
2008-09-30	2014
2008-12-31	1727
2009-03-31	3176
2009-06-30	3661
2009-09-30	3712
2009-12-31	1562
2010-03-31	1060
2010-06-30	874
2010-09-30	1311
2010-12-31	1382
2011-03-31	1353
2011-06-30	1805
2011-09-30	1598
2011-12-31	1770
2012-03-31	1905
2012-06-30	1842
2012-09-30	3338
2012-12-31	3238
2013-03-31	3290
2013-06-30	2815
2013-09-30	2756
2013-12-31	2901
2014-03-31	3014
2014-06-30	3026
2014-09-30	6866
2014-12-31	7763
2015-03-31	8013
2015-06-30	8866
2015-09-30	8982
2015-12-31	9370
2016-03-31	6924
2016-06-30	7543
2016-09-30	8099
2016-12-31	5315
2017-03-31	5212
2017-06-30	5912
2017-09-30	5252
2017-12-31	4756
2018-03-31	4557
2018-06-30	4237
2018-09-30	3843
2018-12-31	3151
2019-03-31	3603
2019-06-30	4140
2019-09-30	4969
2019-12-31	2997
2020-03-31	2620
2020-06-30	2700
2020-09-30	2757
2020-12-31	3022
2021-03-31	2972
2021-06-30	3613
2021-09-30	3155
2021-12-31	1884
2022-03-31	2157
2022-06-30	1974
2022-09-30	1919
2022-12-31	1274
2023-03-31	1274
2023-06-30	1378
2023-09-30	2308