Quarter	US dollars
2004-12-31	164781
2005-03-31	167582
2005-06-30	168549
2005-09-30	169278
2005-12-31	171045
2006-03-31	173823
2006-06-30	178732
2006-09-30	190293
2006-12-31	193117
2007-03-31	200476
2007-06-30	202197
2007-09-30	224383
2007-12-31	210311
2008-03-31	224955
2008-06-30	232523
2008-09-30	236265
2008-12-31	250216
2009-03-31	257981
2009-06-30	284136
2009-09-30	293681
2009-12-31	302428
2010-03-31	293042
2010-06-30	305041
2010-09-30	334551
2010-12-31	343612
2011-03-31	365417
2011-06-30	366917
2011-09-30	369912
2011-12-31	368275
2012-03-31	374793
2012-06-30	378872
2012-09-30	386337
2012-12-31	405922
2013-03-31	408005
2013-06-30	403747
2013-09-30	424989
2013-12-31	433774
2014-03-31	438485
2014-06-30	447290
2014-09-30	450880
2014-12-31	443055
2015-03-31	444757
2015-06-30	460918
2015-09-30	461356
2015-12-31	435806
2016-03-31	433694
2016-06-30	445649
2016-09-30	449117
2016-12-31	444797
2017-03-31	451590
2017-06-30	462491
2017-09-30	474545
2017-12-31	487607
2018-03-31	490748
2018-06-30	502898
2018-09-30	509065
2018-12-31	518369
2019-03-31	512543
2019-06-30	535289
2019-09-30	535820
2019-12-31	546924
2020-03-31	546157
2020-06-30	566558
2020-09-30	589051
2020-12-31	592008
2021-03-31	593040
2021-06-30	608311
2021-09-30	606594
2021-12-31	592550
2022-03-31	609348
2022-06-30	615126
2022-09-30	611967
2022-12-31	611737
2023-03-31	615303
2023-06-30	606334
2023-09-30	596142
