Quarter	US dollars
1999-03-31	291
1999-06-30	407
1999-09-30	528
1999-12-31	555
2000-03-31	552
2000-06-30	389
2000-09-30	546
2000-12-31	416
2001-03-31	496
2001-06-30	405
2001-09-30	353
2001-12-31	377
2002-03-31	319
2002-06-30	403
2002-09-30	249
2002-12-31	297
2003-03-31	561
2003-06-30	373
2003-09-30	418
2003-12-31	320
2004-03-31	440
2004-06-30	447
2004-09-30	405
2004-12-31	280
2005-03-31	571
2005-06-30	650
2005-09-30	658
2005-12-31	667
2006-03-31	570
2006-06-30	341
2006-09-30	298
2006-12-31	430
2007-03-31	206
2007-06-30	214
2007-09-30	269
2007-12-31	156
2008-03-31	289
2008-06-30	473
2008-09-30	459
2008-12-31	393
2009-03-31	410
2009-06-30	263
2009-09-30	340
2009-12-31	278
2010-03-31	291
2010-06-30	268
2010-09-30	216
2010-12-31	241
2011-03-31	256
2011-06-30	244
2011-09-30	180
2011-12-31	181
2012-03-31	385
2012-06-30	269
2012-09-30	232
2012-12-31	212
2013-03-31	314
2013-06-30	279
2013-09-30	219
2013-12-31	146
2014-03-31	165
2014-06-30	161
2014-09-30	195
2014-12-31	131
2015-03-31	89
2015-06-30	122
2015-09-30	95
2015-12-31	87
2016-03-31	65
2016-06-30	20
2016-09-30	5
2016-12-31	7
2017-03-31	2
2017-06-30	11
2017-09-30	27
2017-12-31	66
2018-03-31	37
2018-06-30	97
2018-09-30	59
2018-12-31	58
2019-03-31	44
2019-06-30	12
2019-09-30	22
2019-12-31	22
2020-03-31	21
2020-06-30	36
2020-09-30	28
2020-12-31	39
2021-03-31	93
2021-06-30	39
2021-09-30	47
2021-12-31	51
2022-03-31	55
2022-06-30	82
2022-09-30	91
2022-12-31	77
2023-03-31	85
2023-06-30	85
2023-09-30	84