Quarter	US dollars
2004-12-31	363
2005-03-31	403
2005-06-30	640
2005-09-30	718
2005-12-31	609
2006-03-31	1256
2006-06-30	2478
2006-09-30	1562
2006-12-31	1654
2007-03-31	4793
2007-06-30	7020
2007-09-30	8150
2007-12-31	7504
2008-03-31	9019
2008-06-30	18277
2008-09-30	18161
2008-12-31	15049
2009-03-31	13983
2009-06-30	9940
2009-09-30	8110
2009-12-31	7904
2010-03-31	7998
2010-06-30	7266
2010-09-30	8194
2010-12-31	9473
2011-03-31	9663
2011-06-30	7428
2011-09-30	10559
2011-12-31	15599
2012-03-31	9231
2012-06-30	11819
2012-09-30	6795
2012-12-31	5497
2013-03-31	5377
2013-06-30	6675
2013-09-30	9172
2013-12-31	7081
2014-03-31	5652
2014-06-30	5837
2014-09-30	4765
2014-12-31	4678
2015-03-31	4845
2015-06-30	2790
2015-09-30	2678
2015-12-31	2384
2016-03-31	2716
2016-06-30	2490
2016-09-30	2907
2016-12-31	2507
2017-03-31	3981
2017-06-30	1685
2017-09-30	1116
2017-12-31	1827
2018-03-31	1236
2018-06-30	945
2018-09-30	1596
2018-12-31	1328
2019-03-31	1573
2019-06-30	1236
2019-09-30	924
2019-12-31	764
2020-03-31	2128
2020-06-30	1534
2020-09-30	1347
2020-12-31	1335
2021-03-31	1260
2021-06-30	855
2021-09-30	1079
2021-12-31	1050
2022-03-31	1203
2022-06-30	2177
2022-09-30	2458
2022-12-31	2562
2023-03-31	1881
2023-06-30	1863
2023-09-30	2176