Quarter	US dollars
1999-09-30	252
1999-12-31	269
2000-03-31	311
2000-06-30	326
2000-09-30	310
2000-12-31	312
2001-03-31	316
2001-06-30	269
2001-09-30	294
2001-12-31	336
2002-03-31	355
2002-06-30	360
2002-09-30	337
2002-12-31	422
2003-03-31	433
2003-06-30	431
2003-09-30	439
2003-12-31	478
2004-03-31	557
2004-06-30	613
2004-09-30	744
2004-12-31	760
2005-03-31	896
2005-06-30	950
2005-09-30	1017
2005-12-31	997
2006-03-31	1133
2006-06-30	1152
2006-09-30	1186
2006-12-31	1440
2007-03-31	2381
2007-06-30	2693
2007-09-30	3074
2007-12-31	3440
2008-03-31	4635
2008-06-30	3926
2008-09-30	3716
2008-12-31	2777
2009-03-31	2582
2009-06-30	2378
2009-09-30	2393
2009-12-31	2469
2010-03-31	2571
2010-06-30	3338
2010-09-30	2880
2010-12-31	3363
2011-03-31	3645
2011-06-30	3889
2011-09-30	4069
2011-12-31	4409
2012-03-31	4881
2012-06-30	5404
2012-09-30	5089
2012-12-31	5285
2013-03-31	5435
2013-06-30	5594
2013-09-30	5346
2013-12-31	5334
2014-03-31	5517
2014-06-30	5775
2014-09-30	6631
2014-12-31	6136
2015-03-31	6252
2015-06-30	5985
2015-09-30	5467
2015-12-31	4870
2016-03-31	4900
2016-06-30	4820
2016-09-30	5329
2016-12-31	5283
2017-03-31	5528
2017-06-30	6278
2017-09-30	6535
2017-12-31	7160
2018-03-31	7578
2018-06-30	7825
2018-09-30	7600
2018-12-31	7896
2019-03-31	8235
2019-06-30	7922
2019-09-30	8163
2019-12-31	8617
2020-03-31	8690
2020-06-30	8350
2020-09-30	8354
2020-12-31	8937
2021-03-31	10139
2021-06-30	11724
2021-09-30	12010
2021-12-31	11286
2022-03-31	11894
2022-06-30	11471
2022-09-30	11666
2022-12-31	10810
2023-03-31	10568
2023-06-30	9871
2023-09-30	9415