Quarter	US dollars
2004-12-31	468
2005-03-31	664
2005-06-30	554
2005-09-30	741
2005-12-31	445
2006-03-31	675
2006-06-30	497
2006-09-30	486
2006-12-31	945
2007-03-31	979
2007-06-30	881
2007-09-30	1061
2007-12-31	1161
2008-03-31	1252
2008-06-30	1379
2008-09-30	1315
2008-12-31	1124
2009-03-31	942
2009-06-30	1036
2009-09-30	1158
2009-12-31	1126
2010-03-31	1075
2010-06-30	1884
2010-09-30	1848
2010-12-31	2483
2011-03-31	2651
2011-06-30	2816
2011-09-30	2650
2011-12-31	2042
2012-03-31	2121
2012-06-30	2453
2012-09-30	2006
2012-12-31	1757
2013-03-31	1568
2013-06-30	1433
2013-09-30	1921
2013-12-31	1993
2014-03-31	1739
2014-06-30	1790
2014-09-30	1360
2014-12-31	1319
2015-03-31	779
2015-06-30	760
2015-09-30	857
2015-12-31	656
2016-03-31	712
2016-06-30	608
2016-09-30	699
2016-12-31	695
2017-03-31	635
2017-06-30	801
2017-09-30	1080
2017-12-31	912
2018-03-31	807
2018-06-30	867
2018-09-30	768
2018-12-31	857
2019-03-31	685
2019-06-30	672
2019-09-30	620
2019-12-31	454
2020-03-31	463
2020-06-30	452
2020-09-30	379
2020-12-31	377
2021-03-31	406
2021-06-30	428
2021-09-30	407
2021-12-31	984
2022-03-31	563
2022-06-30	515
2022-09-30	430
2022-12-31	514
2023-03-31	520
2023-06-30	547
2023-09-30	547