Quarter	US dollars
2004-12-31	649
2005-03-31	684
2005-06-30	678
2005-09-30	932
2005-12-31	1121
2006-03-31	2014
2006-06-30	1361
2006-09-30	1364
2006-12-31	1063
2007-03-31	2257
2007-06-30	1934
2007-09-30	2928
2007-12-31	3916
2008-03-31	4432
2008-06-30	4486
2008-09-30	4505
2008-12-31	1896
2009-03-31	1427
2009-06-30	4504
2009-09-30	5212
2009-12-31	2750
2010-03-31	3015
2010-06-30	3066
2010-09-30	3227
2010-12-31	3596
2011-03-31	4250
2011-06-30	3324
2011-09-30	2976
2011-12-31	5226
2012-03-31	7001
2012-06-30	4685
2012-09-30	11955
2012-12-31	8221
2013-03-31	14235
2013-06-30	9727
2013-09-30	9655
2013-12-31	6089
2014-03-31	4932
2014-06-30	4773
2014-09-30	5669
2014-12-31	2527
2015-03-31	2030
2015-06-30	1697
2015-09-30	1609
2015-12-31	1012
2016-03-31	1901
2016-06-30	1346
2016-09-30	1341
2016-12-31	1195
2017-03-31	694
2017-06-30	1643
2017-09-30	2529
2017-12-31	1581
2018-03-31	1765
2018-06-30	593
2018-09-30	267
2018-12-31	1142
2019-03-31	1052
2019-06-30	1110
2019-09-30	752
2019-12-31	904
2020-03-31	463
2020-06-30	399
2020-09-30	482
2020-12-31	1235
2021-03-31	1119
2021-06-30	1425
2021-09-30	2190
2021-12-31	598
2022-03-31	292
2022-06-30	304
2022-09-30	259
2022-12-31	212
2023-03-31	243
2023-06-30	226
2023-09-30	205