Quarter	US dollars
2004-12-31	38504
2005-03-31	45689
2005-06-30	40783
2005-09-30	37168
2005-12-31	40804
2006-03-31	40284
2006-06-30	61661
2006-09-30	50260
2006-12-31	49712
2007-03-31	50753
2007-06-30	56310
2007-09-30	62059
2007-12-31	66106
2008-03-31	82630
2008-06-30	77920
2008-09-30	82451
2008-12-31	57274
2009-03-31	60017
2009-06-30	69821
2009-09-30	78732
2009-12-31	79267
2010-03-31	81524
2010-06-30	89229
2010-09-30	96391
2010-12-31	82635
2011-03-31	68775
2011-06-30	76496
2011-09-30	76725
2011-12-31	73707
2012-03-31	68726
2012-06-30	84220
2012-09-30	73735
2012-12-31	69298
2013-03-31	57935
2013-06-30	62597
2013-09-30	68606
2013-12-31	63125
2014-03-31	67376
2014-06-30	81069
2014-09-30	66040
2014-12-31	58926
2015-03-31	60561
2015-06-30	58675
2015-09-30	55403
2015-12-31	55678
2016-03-31	66668
2016-06-30	72075
2016-09-30	79930
2016-12-31	88822
2017-03-31	81902
2017-06-30	84354
2017-09-30	97925
2017-12-31	91667
2018-03-31	113172
2018-06-30	96212
2018-09-30	109632
2018-12-31	113948
2019-03-31	116345
2019-06-30	127429
2019-09-30	107920
2019-12-31	118994
2020-03-31	138734
2020-06-30	134517
2020-09-30	145942
2020-12-31	129046
2021-03-31	123427
2021-06-30	134068
2021-09-30	143584
2021-12-31	126916
2022-03-31	115144
2022-06-30	123706
2022-09-30	119890
2022-12-31	121540
2023-03-31	136622
2023-06-30	133031
2023-09-30	135983