Quarter	US dollars
1999-09-30	379
1999-12-31	379
2000-03-31	368
2000-06-30	394
2000-09-30	917
2000-12-31	912
2001-03-31	873
2001-06-30	897
2001-09-30	819
2001-12-31	884
2002-03-31	813
2002-06-30	975
2002-09-30	915
2002-12-31	1062
2003-03-31	963
2003-06-30	1186
2003-09-30	1231
2003-12-31	1359
2004-03-31	1388
2004-06-30	1545
2004-09-30	1605
2004-12-31	1705
2005-03-31	1662
2005-06-30	1744
2005-09-30	1870
2005-12-31	1859
2006-03-31	1813
2006-06-30	1971
2006-09-30	1960
2006-12-31	2035
2007-03-31	2128
2007-06-30	2323
2007-09-30	2367
2007-12-31	2417
2008-03-31	2655
2008-06-30	2802
2008-09-30	3259
2008-12-31	3206
2009-03-31	3067
2009-06-30	3203
2009-09-30	3199
2009-12-31	3372
2010-03-31	3563
2010-06-30	3691
2010-09-30	3939
2010-12-31	4238
2011-03-31	4565
2011-06-30	4682
2011-09-30	4727
2011-12-31	4604
2012-03-31	4750
2012-06-30	5123
2012-09-30	5531
2012-12-31	5976
2013-03-31	6276
2013-06-30	6857
2013-09-30	7022
2013-12-31	7287
2014-03-31	7521
2014-06-30	7584
2014-09-30	7842
2014-12-31	7895
2015-03-31	7908
2015-06-30	8133
2015-09-30	7799
2015-12-31	7802
2016-03-31	7712
2016-06-30	8135
2016-09-30	8134
2016-12-31	8249
2017-03-31	7518
2017-06-30	9553
2017-09-30	10141
2017-12-31	10112
2018-03-31	10470
2018-06-30	10710
2018-09-30	11127
2018-12-31	11433
2019-03-31	11211
2019-06-30	11479
2019-09-30	11533
2019-12-31	11256
2020-03-31	11734
2020-06-30	12271
2020-09-30	12087
2020-12-31	12467
2021-03-31	13066
2021-06-30	13509
2021-09-30	13816
2021-12-31	14438
2022-03-31	15078
2022-06-30	14265
2022-09-30	14365
2022-12-31	14391
2023-03-31	14238
2023-06-30	14088
2023-09-30	13238