Quarter	US dollars
2004-12-31	48
2005-03-31	53
2005-06-30	65
2005-09-30	637
2005-12-31	513
2006-03-31	461
2006-06-30	560
2006-09-30	534
2006-12-31	534
2007-03-31	584
2007-06-30	534
2007-09-30	650
2007-12-31	683
2008-03-31	998
2008-06-30	991
2008-09-30	928
2008-12-31	832
2009-03-31	881
2009-06-30	985
2009-09-30	1054
2009-12-31	848
2010-03-31	984
2010-06-30	848
2010-09-30	833
2010-12-31	822
2011-03-31	768
2011-06-30	1103
2011-09-30	1310
2011-12-31	1209
2012-03-31	1130
2012-06-30	1090
2012-09-30	1025
2012-12-31	1269
2013-03-31	1386
2013-06-30	1544
2013-09-30	1571
2013-12-31	1516
2014-03-31	1496
2014-06-30	1517
2014-09-30	1420
2014-12-31	1286
2015-03-31	1179
2015-06-30	1252
2015-09-30	1256
2015-12-31	1317
2016-03-31	1231
2016-06-30	606
2016-09-30	595
2016-12-31	605
2017-03-31	589
2017-06-30	744
2017-09-30	742
2017-12-31	725
2018-03-31	674
2018-06-30	595
2018-09-30	599
2018-12-31	524
2019-03-31	528
2019-06-30	649
2019-09-30	621
2019-12-31	630
2020-03-31	619
2020-06-30	633
2020-09-30	576
2020-12-31	547
2021-03-31	639
2021-06-30	720
2021-09-30	717
2021-12-31	720
2022-03-31	667
2022-06-30	706
2022-09-30	651
2022-12-31	610
2023-03-31	624
2023-06-30	719
2023-09-30	828