Quarter	US dollars
2004-12-31	223
2005-03-31	361
2005-06-30	425
2005-09-30	294
2005-12-31	637
2006-03-31	1181
2006-06-30	1565
2006-09-30	2595
2006-12-31	2319
2007-03-31	2679
2007-06-30	3618
2007-09-30	3398
2007-12-31	3657
2008-03-31	3907
2008-06-30	3781
2008-09-30	3286
2008-12-31	2155
2009-03-31	1809
2009-06-30	1479
2009-09-30	1815
2009-12-31	1823
2010-03-31	2084
2010-06-30	3648
2010-09-30	3507
2010-12-31	4811
2011-03-31	4722
2011-06-30	4852
2011-09-30	4322
2011-12-31	5002
2012-03-31	5867
2012-06-30	5666
2012-09-30	5720
2012-12-31	5853
2013-03-31	4509
2013-06-30	4811
2013-09-30	4986
2013-12-31	5193
2014-03-31	5577
2014-06-30	4387
2014-09-30	3891
2014-12-31	3382
2015-03-31	2756
2015-06-30	2320
2015-09-30	3387
2015-12-31	1449
2016-03-31	1320
2016-06-30	1581
2016-09-30	1572
2016-12-31	1336
2017-03-31	1192
2017-06-30	1131
2017-09-30	1631
2017-12-31	1047
2018-03-31	1398
2018-06-30	1138
2018-09-30	1043
2018-12-31	681
2019-03-31	654
2019-06-30	1170
2019-09-30	648
2019-12-31	847
2020-03-31	727
2020-06-30	640
2020-09-30	633
2020-12-31	957
2021-03-31	857
2021-06-30	520
2021-09-30	487
2021-12-31	752
2022-03-31	269
2022-06-30	196
2022-09-30	78
2022-12-31	259
2023-03-31	103
2023-06-30	78
2023-09-30	69