Quarter	US dollars
2004-12-31	647
2005-03-31	633
2005-06-30	615
2005-09-30	585
2005-12-31	589
2006-03-31	619
2006-06-30	642
2006-09-30	631
2006-12-31	597
2007-03-31	659
2007-06-30	742
2007-09-30	1153
2007-12-31	840
2008-03-31	930
2008-06-30	967
2008-09-30	975
2008-12-31	819
2009-03-31	778
2009-06-30	812
2009-09-30	848
2009-12-31	870
2010-03-31	868
2010-06-30	896
2010-09-30	931
2010-12-31	908
2011-03-31	880
2011-06-30	994
2011-09-30	967
2011-12-31	855
2012-03-31	991
2012-06-30	1101
2012-09-30	1038
2012-12-31	1023
2013-03-31	973
2013-06-30	968
2013-09-30	1100
2013-12-31	1063
2014-03-31	1234
2014-06-30	1082
2014-09-30	1067
2014-12-31	999
2015-03-31	929
2015-06-30	936
2015-09-30	944
2015-12-31	889
2016-03-31	861
2016-06-30	892
2016-09-30	864
2016-12-31	837
2017-03-31	958
2017-06-30	583
2017-09-30	635
2017-12-31	546
2018-03-31	279
2018-06-30	269
2018-09-30	265
2018-12-31	412
2019-03-31	394
2019-06-30	406
2019-09-30	393
2019-12-31	400
2020-03-31	387
2020-06-30	323
2020-09-30	317
2020-12-31	330
2021-03-31	366
2021-06-30	351
2021-09-30	345
2021-12-31	318
2022-03-31	329
2022-06-30	327
2022-09-30	334
2022-12-31	364
2023-03-31	372
2023-06-30	654
2023-09-30	660