Quarter	US dollars
1999-09-30	227387
1999-12-31	230095
2000-03-31	292880
2000-06-30	279657
2000-09-30	294466
2000-12-31	297240
2001-03-31	341787
2001-06-30	304120
2001-09-30	315552
2001-12-31	351565
2002-03-31	365731
2002-06-30	380911
2002-09-30	422897
2002-12-31	426916
2003-03-31	529692
2003-06-30	539205
2003-09-30	560488
2003-12-31	540555
2004-03-31	594108
2004-06-30	636090
2004-09-30	741322
2004-12-31	756604
2005-03-31	840162
2005-06-30	854854
2005-09-30	918106
2005-12-31	902166
2006-03-31	1009871
2006-06-30	1016748
2006-09-30	1091647
2006-12-31	1074669
2007-03-31	1193014
2007-06-30	1131064
2007-09-30	1257086
2007-12-31	1208890
2008-03-31	1336532
2008-06-30	1240690
2008-09-30	1508849
2008-12-31	1208521
2009-03-31	1256083
2009-06-30	1214184
2009-09-30	1136968
2009-12-31	1119312
2010-03-31	1240738
2010-06-30	1209962
2010-09-30	1167217
2010-12-31	1127467
2011-03-31	1133582
2011-06-30	1150358
2011-09-30	1154663
2011-12-31	1101507
2012-03-31	1135917
2012-06-30	1075338
2012-09-30	1103277
2012-12-31	1084591
2013-03-31	1001990
2013-06-30	1103923
2013-09-30	1056837
2013-12-31	993125
2014-03-31	1022547
2014-06-30	997237
2014-09-30	977799
2014-12-31	990932
2015-03-31	978845
2015-06-30	917815
2015-09-30	783792
2015-12-31	740268
2016-03-31	734099
2016-06-30	793364
2016-09-30	720367
2016-12-31	704289
2017-03-31	772060
2017-06-30	813468
2017-09-30	854512
2017-12-31	867303
2018-03-31	916024
2018-06-30	879588
2018-09-30	858040
2018-12-31	865630
2019-03-31	921505
2019-06-30	966104
2019-09-30	988131
2019-12-31	950527
2020-03-31	1129155
2020-06-30	1064217
2020-09-30	1043493
2020-12-31	1028563
2021-03-31	1083153
2021-06-30	1122402
2021-09-30	1163742
2021-12-31	1175211
2022-03-31	1193012
2022-06-30	1137595
2022-09-30	1137675
2022-12-31	1127731
2023-03-31	1230986
2023-06-30	1328615
2023-09-30	1337579