Quarter	US dollars
1999-09-30	182290
1999-12-31	178901
2000-03-31	187166
2000-06-30	191029
2000-09-30	203312
2000-12-31	207321
2001-03-31	214127
2001-06-30	219840
2001-09-30	226102
2001-12-31	218415
2002-03-31	224123
2002-06-30	232182
2002-09-30	236523
2002-12-31	233354
2003-03-31	239145
2003-06-30	241332
2003-09-30	244207
2003-12-31	245970
2004-03-31	268952
2004-06-30	271088
2004-09-30	288880
2004-12-31	300261
2005-03-31	323671
2005-06-30	315019
2005-09-30	331547
2005-12-31	317642
2006-03-31	342669
2006-06-30	352129
2006-09-30	379256
2006-12-31	394275
2007-03-31	396420
2007-06-30	410054
2007-09-30	485722
2007-12-31	472462
2008-03-31	503291
2008-06-30	509388
2008-09-30	524135
2008-12-31	458380
2009-03-31	461377
2009-06-30	495142
2009-09-30	502199
2009-12-31	522693
2010-03-31	514026
2010-06-30	529043
2010-09-30	567804
2010-12-31	573474
2011-03-31	602978
2011-06-30	603542
2011-09-30	576995
2011-12-31	563326
2012-03-31	578808
2012-06-30	580685
2012-09-30	595355
2012-12-31	592893
2013-03-31	602176
2013-06-30	591615
2013-09-30	614276
2013-12-31	624310
2014-03-31	620214
2014-06-30	645673
2014-09-30	646217
2014-12-31	633928
2015-03-31	631090
2015-06-30	637787
2015-09-30	634461
2015-12-31	592919
2016-03-31	607282
2016-06-30	624009
2016-09-30	622846
2016-12-31	617986
2017-03-31	638142
2017-06-30	648619
2017-09-30	667132
2017-12-31	685265
2018-03-31	674562
2018-06-30	681577
2018-09-30	689343
2018-12-31	699250
2019-03-31	707435
2019-06-30	727356
2019-09-30	726980
2019-12-31	746830
2020-03-31	760603
2020-06-30	760824
2020-09-30	777313
2020-12-31	776526
2021-03-31	796858
2021-06-30	810824
2021-09-30	812048
2021-12-31	812991
2022-03-31	828508
2022-06-30	830098
2022-09-30	812072
2022-12-31	815790
2023-03-31	831581
2023-06-30	825071
2023-09-30	818367