Quarter	US dollars
1999-09-30	10
1999-12-31	3
2000-03-31	11
2000-06-30	3
2000-09-30	216
2000-12-31	1
2001-03-31	0
2001-06-30	1
2001-09-30	1
2001-12-31	13
2002-03-31	0
2002-06-30	2
2002-09-30	168
2002-12-31	192
2003-03-31	188
2003-06-30	216
2003-09-30	221
2003-12-31	240
2004-03-31	228
2004-06-30	230
2004-09-30	235
2004-12-31	261
2005-03-31	280
2005-06-30	262
2005-09-30	264
2005-12-31	251
2006-03-31	252
2006-06-30	268
2006-09-30	276
2006-12-31	290
2007-03-31	298
2007-06-30	297
2007-09-30	310
2007-12-31	221
2008-03-31	372
2008-06-30	390
2008-09-30	266
2008-12-31	233
2009-03-31	208
2009-06-30	240
2009-09-30	249
2009-12-31	250
2010-03-31	224
2010-06-30	262
2010-09-30	268
2010-12-31	280
2011-03-31	268
2011-06-30	271
2011-09-30	310
2011-12-31	312
2012-03-31	328
2012-06-30	303
2012-09-30	265
2012-12-31	247
2013-03-31	244
2013-06-30	240
2013-09-30	238
2013-12-31	236
2014-03-31	250
2014-06-30	251
2014-09-30	258
2014-12-31	105
2015-03-31	248
2015-06-30	302
2015-09-30	298
2015-12-31	302
2016-03-31	313
2016-06-30	287
2016-09-30	274
2016-12-31	266
2017-03-31	364
2017-06-30	620
2017-09-30	724
2017-12-31	713
2018-03-31	723
2018-06-30	714
2018-09-30	677
2018-12-31	744
2019-03-31	711
2019-06-30	797
2019-09-30	788
2019-12-31	781
2020-03-31	748
2020-06-30	812
2020-09-30	818
2020-12-31	880
2021-03-31	1007
2021-06-30	1016
2021-09-30	1173
2021-12-31	1251
2022-03-31	1277
2022-06-30	1352
2022-09-30	1463
2022-12-31	1294
2023-03-31	1345
2023-06-30	1414
2023-09-30	1411