Quarter	US dollars
1999-09-30	107
1999-12-31	164
2000-03-31	179
2000-06-30	168
2000-09-30	98
2000-12-31	161
2001-03-31	166
2001-06-30	180
2001-09-30	213
2001-12-31	186
2002-03-31	214
2002-06-30	235
2002-09-30	220
2002-12-31	295
2003-03-31	280
2003-06-30	309
2003-09-30	316
2003-12-31	347
2004-03-31	364
2004-06-30	345
2004-09-30	347
2004-12-31	372
2005-03-31	357
2005-06-30	321
2005-09-30	350
2005-12-31	352
2006-03-31	333
2006-06-30	362
2006-09-30	340
2006-12-31	342
2007-03-31	329
2007-06-30	351
2007-09-30	381
2007-12-31	342
2008-03-31	411
2008-06-30	396
2008-09-30	362
2008-12-31	378
2009-03-31	344
2009-06-30	524
2009-09-30	646
2009-12-31	546
2010-03-31	582
2010-06-30	353
2010-09-30	756
2010-12-31	418
2011-03-31	430
2011-06-30	464
2011-09-30	347
2011-12-31	447
2012-03-31	281
2012-06-30	187
2012-09-30	426
2012-12-31	398
2013-03-31	357
2013-06-30	388
2013-09-30	415
2013-12-31	483
2014-03-31	238
2014-06-30	222
2014-09-30	125
2014-12-31	197
2015-03-31	192
2015-06-30	140
2015-09-30	133
2015-12-31	240
2016-03-31	129
2016-06-30	188
2016-09-30	222
2016-12-31	372
2017-03-31	133
2017-06-30	627
2017-09-30	672
2017-12-31	689
2018-03-31	805
2018-06-30	581
2018-09-30	644
2018-12-31	604
2019-03-31	708
2019-06-30	663
2019-09-30	557
2019-12-31	506
2020-03-31	491
2020-06-30	477
2020-09-30	461
2020-12-31	497
2021-03-31	469
2021-06-30	491
2021-09-30	471
2021-12-31	608
2022-03-31	524
2022-06-30	491
2022-09-30	444
2022-12-31	550
2023-03-31	724
2023-06-30	680
2023-09-30	426