Quarter	US dollars
2004-12-31	503
2005-03-31	397
2005-06-30	489
2005-09-30	631
2005-12-31	735
2006-03-31	741
2006-06-30	890
2006-09-30	869
2006-12-31	908
2007-03-31	963
2007-06-30	987
2007-09-30	1746
2007-12-31	2077
2008-03-31	2397
2008-06-30	1807
2008-09-30	1850
2008-12-31	1242
2009-03-31	1026
2009-06-30	1480
2009-09-30	1171
2009-12-31	1825
2010-03-31	2307
2010-06-30	5943
2010-09-30	6565
2010-12-31	8570
2011-03-31	13735
2011-06-30	17792
2011-09-30	14727
2011-12-31	12774
2012-03-31	13148
2012-06-30	13593
2012-09-30	14629
2012-12-31	12559
2013-03-31	12196
2013-06-30	17372
2013-09-30	18221
2013-12-31	13834
2014-03-31	14372
2014-06-30	13036
2014-09-30	14682
2014-12-31	14807
2015-03-31	13013
2015-06-30	14395
2015-09-30	11875
2015-12-31	10025
2016-03-31	10717
2016-06-30	10578
2016-09-30	8703
2016-12-31	9380
2017-03-31	9113
2017-06-30	17943
2017-09-30	19341
2017-12-31	15966
2018-03-31	11563
2018-06-30	11963
2018-09-30	14629
2018-12-31	13828
2019-03-31	14252
2019-06-30	14679
2019-09-30	12743
2019-12-31	11865
2020-03-31	12631
2020-06-30	10783
2020-09-30	10879
2020-12-31	9681
2021-03-31	11716
2021-06-30	13143
2021-09-30	7895
2021-12-31	7768
2022-03-31	7146
2022-06-30	9488
2022-09-30	7590
2022-12-31	6097
2023-03-31	8980
2023-06-30	12089
2023-09-30	12554