Quarter	US dollars
1999-09-30	165
1999-12-31	189
2000-03-31	249
2000-06-30	220
2000-09-30	222
2000-12-31	242
2001-03-31	233
2001-06-30	228
2001-09-30	215
2001-12-31	291
2002-03-31	204
2002-06-30	203
2002-09-30	208
2002-12-31	261
2003-03-31	221
2003-06-30	342
2003-09-30	367
2003-12-31	460
2004-03-31	474
2004-06-30	437
2004-09-30	416
2004-12-31	407
2005-03-31	473
2005-06-30	398
2005-09-30	373
2005-12-31	422
2006-03-31	472
2006-06-30	294
2006-09-30	278
2006-12-31	335
2007-03-31	320
2007-06-30	311
2007-09-30	365
2007-12-31	400
2008-03-31	445
2008-06-30	414
2008-09-30	408
2008-12-31	420
2009-03-31	353
2009-06-30	354
2009-09-30	373
2009-12-31	383
2010-03-31	340
2010-06-30	331
2010-09-30	386
2010-12-31	462
2011-03-31	470
2011-06-30	514
2011-09-30	537
2011-12-31	574
2012-03-31	753
2012-06-30	775
2012-09-30	899
2012-12-31	792
2013-03-31	829
2013-06-30	828
2013-09-30	711
2013-12-31	714
2014-03-31	760
2014-06-30	836
2014-09-30	866
2014-12-31	926
2015-03-31	729
2015-06-30	679
2015-09-30	735
2015-12-31	723
2016-03-31	712
2016-06-30	721
2016-09-30	711
2016-12-31	813
2017-03-31	1191
2017-06-30	1052
2017-09-30	1118
2017-12-31	978
2018-03-31	996
2018-06-30	989
2018-09-30	1002
2018-12-31	969
2019-03-31	1016
2019-06-30	1006
2019-09-30	1016
2019-12-31	991
2020-03-31	1108
2020-06-30	1101
2020-09-30	1205
2020-12-31	1290
2021-03-31	1262
2021-06-30	1365
2021-09-30	1325
2021-12-31	1217
2022-03-31	1140
2022-06-30	1151
2022-09-30	1108
2022-12-31	1144
2023-03-31	1177
2023-06-30	1112
2023-09-30	1135