Quarter	US dollars
1999-09-30	117
1999-12-31	763
2000-03-31	185
2000-06-30	145
2000-09-30	49
2000-12-31	57
2001-03-31	121
2001-06-30	204
2001-09-30	265
2001-12-31	253
2002-03-31	300
2002-06-30	465
2002-09-30	421
2002-12-31	306
2003-03-31	114
2003-06-30	101
2003-09-30	151
2003-12-31	138
2004-03-31	358
2004-06-30	328
2004-09-30	221
2004-12-31	758
2005-03-31	630
2005-06-30	717
2005-09-30	929
2005-12-31	681
2006-03-31	635
2006-06-30	712
2006-09-30	835
2006-12-31	620
2007-03-31	3167
2007-06-30	2851
2007-09-30	1102
2007-12-31	1187
2008-03-31	2244
2008-06-30	1801
2008-09-30	2099
2008-12-31	3401
2009-03-31	2592
2009-06-30	2184
2009-09-30	2180
2009-12-31	1678
2010-03-31	1770
2010-06-30	2327
2010-09-30	2842
2010-12-31	1880
2011-03-31	1372
2011-06-30	1360
2011-09-30	1983
2011-12-31	1088
2012-03-31	1015
2012-06-30	918
2012-09-30	633
2012-12-31	529
2013-03-31	1624
2013-06-30	1118
2013-09-30	849
2013-12-31	1096
2014-03-31	1376
2014-06-30	819
2014-09-30	1075
2014-12-31	1731
2015-03-31	1097
2015-06-30	758
2015-09-30	1890
2015-12-31	1568
2016-03-31	1119
2016-06-30	925
2016-09-30	764
2016-12-31	1022
2017-03-31	913
2017-06-30	564
2017-09-30	500
2017-12-31	424
2018-03-31	549
2018-06-30	1555
2018-09-30	872
2018-12-31	887
2019-03-31	483
2019-06-30	515
2019-09-30	543
2019-12-31	392
2020-03-31	864
2020-06-30	580
2020-09-30	556
2020-12-31	826
2021-03-31	1061
2021-06-30	659
2021-09-30	452
2021-12-31	318
2022-03-31	1672
2022-06-30	2033
2022-09-30	3755
2022-12-31	1207
2023-03-31	663
2023-06-30	1563
2023-09-30	2162