Quarter	US dollars
2004-12-31	799
2005-03-31	775
2005-06-30	753
2005-09-30	879
2005-12-31	740
2006-03-31	881
2006-06-30	1483
2006-09-30	1351
2006-12-31	1162
2007-03-31	1104
2007-06-30	1067
2007-09-30	1159
2007-12-31	1135
2008-03-31	1717
2008-06-30	1588
2008-09-30	2201
2008-12-31	1672
2009-03-31	2934
2009-06-30	2821
2009-09-30	2495
2009-12-31	2994
2010-03-31	3253
2010-06-30	3823
2010-09-30	3846
2010-12-31	3413
2011-03-31	3265
2011-06-30	3621
2011-09-30	3479
2011-12-31	3590
2012-03-31	3425
2012-06-30	3457
2012-09-30	3977
2012-12-31	3930
2013-03-31	3870
2013-06-30	3761
2013-09-30	7145
2013-12-31	1970
2014-03-31	2069
2014-06-30	2296
2014-09-30	2048
2014-12-31	2052
2015-03-31	1822
2015-06-30	1773
2015-09-30	1721
2015-12-31	1469
2016-03-31	1270
2016-06-30	1288
2016-09-30	1208
2016-12-31	1160
2017-03-31	1204
2017-06-30	1002
2017-09-30	1018
2017-12-31	954
2018-03-31	849
2018-06-30	794
2018-09-30	837
2018-12-31	796
2019-03-31	938
2019-06-30	916
2019-09-30	1095
2019-12-31	1025
2020-03-31	744
2020-06-30	782
2020-09-30	867
2020-12-31	805
2021-03-31	775
2021-06-30	708
2021-09-30	569
2021-12-31	495
2022-03-31	738
2022-06-30	736
2022-09-30	1058
2022-12-31	1330
2023-03-31	1482
2023-06-30	1308
2023-09-30	1157