Quarter	US dollars
1998-06-30	304
1998-09-30	329
1998-12-31	356
1999-03-31	357
1999-06-30	464
1999-09-30	583
1999-12-31	615
2000-03-31	610
2000-06-30	448
2000-09-30	607
2000-12-31	485
2001-03-31	574
2001-06-30	483
2001-09-30	435
2001-12-31	455
2002-03-31	389
2002-06-30	475
2002-09-30	320
2002-12-31	368
2003-03-31	633
2003-06-30	441
2003-09-30	486
2003-12-31	390
2004-03-31	509
2004-06-30	512
2004-09-30	474
2004-12-31	343
2005-03-31	637
2005-06-30	719
2005-09-30	727
2005-12-31	736
2006-03-31	641
2006-06-30	416
2006-09-30	386
2006-12-31	522
2007-03-31	302
2007-06-30	308
2007-09-30	364
2007-12-31	251
2008-03-31	392
2008-06-30	576
2008-09-30	554
2008-12-31	487
2009-03-31	500
2009-06-30	355
2009-09-30	444
2009-12-31	394
2010-03-31	392
2010-06-30	353
2010-09-30	302
2010-12-31	332
2011-03-31	365
2011-06-30	363
2011-09-30	295
2011-12-31	300
2012-03-31	512
2012-06-30	389
2012-09-30	368
2012-12-31	347
2013-03-31	459
2013-06-30	396
2013-09-30	384
2013-12-31	297
2014-03-31	297
2014-06-30	279
2014-09-30	301
2014-12-31	231
2015-03-31	180
2015-06-30	210
2015-09-30	185
2015-12-31	171
2016-03-31	150
2016-06-30	105
2016-09-30	69
2016-12-31	83
2017-03-31	69
2017-06-30	79
2017-09-30	88
2017-12-31	133
2018-03-31	84
2018-06-30	136
2018-09-30	88
2018-12-31	85
2019-03-31	72
2019-06-30	33
2019-09-30	44
2019-12-31	44
2020-03-31	41
2020-06-30	58
2020-09-30	50
2020-12-31	62
2021-03-31	167
2021-06-30	81
2021-09-30	71
2021-12-31	77
2022-03-31	79
2022-06-30	105
2022-09-30	111
2022-12-31	99
2023-03-31	106
2023-06-30	106
2023-09-30	108