Quarter	US dollars
1999-09-30	111597
1999-12-31	113824
2000-03-31	120744
2000-06-30	121543
2000-09-30	124878
2000-12-31	132478
2001-03-31	129992
2001-06-30	129084
2001-09-30	128900
2001-12-31	127987
2002-03-31	126847
2002-06-30	128491
2002-09-30	130794
2002-12-31	149524
2003-03-31	152306
2003-06-30	152863
2003-09-30	161826
2003-12-31	170623
2004-03-31	185655
2004-06-30	176680
2004-09-30	193977
2004-12-31	201340
2005-03-31	223020
2005-06-30	259004
2005-09-30	344299
2005-12-31	341358
2006-03-31	380388
2006-06-30	391278
2006-09-30	409756
2006-12-31	438106
2007-03-31	472422
2007-06-30	510173
2007-09-30	577226
2007-12-31	617746
2008-03-31	672854
2008-06-30	675715
2008-09-30	661275
2008-12-31	574936
2009-03-31	562631
2009-06-30	596341
2009-09-30	626775
2009-12-31	640184
2010-03-31	702082
2010-06-30	747171
2010-09-30	816909
2010-12-31	851854
2011-03-31	898150
2011-06-30	967276
2011-09-30	918443
2011-12-31	901554
2012-03-31	938892
2012-06-30	918494
2012-09-30	919065
2012-12-31	918569
2013-03-31	938889
2013-06-30	908370
2013-09-30	938376
2013-12-31	920605
2014-03-31	950643
2014-06-30	946466
2014-09-30	933826
2014-12-31	903308
2015-03-31	878007
2015-06-30	845295
2015-09-30	787355
2015-12-31	744364
2016-03-31	747982
2016-06-30	741841
2016-09-30	716042
2016-12-31	678093
2017-03-31	714048
2017-06-30	721013
2017-09-30	728355
2017-12-31	753001
2018-03-31	770264
2018-06-30	727881
2018-09-30	718083
2018-12-31	728409
2019-03-31	755099
2019-06-30	766709
2019-09-30	747161
2019-12-31	756172
2020-03-31	749978
2020-06-30	736813
2020-09-30	725475
2020-12-31	797916
2021-03-31	802882
2021-06-30	823727
2021-09-30	812039
2021-12-31	855141
2022-03-31	839466
2022-06-30	806554
2022-09-30	804676
2022-12-31	815608
2023-03-31	834972
2023-06-30	827282
2023-09-30	806695