Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	164
2005-12-31	154
2006-03-31	163
2006-06-30	194
2006-09-30	135
2006-12-31	186
2007-03-31	184
2007-06-30	150
2007-09-30	247
2007-12-31	233
2008-03-31	264
2008-06-30	257
2008-09-30	203
2008-12-31	196
2009-03-31	201
2009-06-30	300
2009-09-30	361
2009-12-31	271
2010-03-31	303
2010-06-30	251
2010-09-30	258
2010-12-31	252
2011-03-31	300
2011-06-30	384
2011-09-30	352
2011-12-31	336
2012-03-31	371
2012-06-30	337
2012-09-30	339
2012-12-31	409
2013-03-31	413
2013-06-30	437
2013-09-30	473
2013-12-31	473
2014-03-31	522
2014-06-30	489
2014-09-30	538
2014-12-31	490
2015-03-31	439
2015-06-30	470
2015-09-30	453
2015-12-31	436
2016-03-31	414
2016-06-30	94
2016-09-30	105
2016-12-31	85
2017-03-31	63
2017-06-30	294
2017-09-30	354
2017-12-31	342
2018-03-31	310
2018-06-30	280
2018-09-30	269
2018-12-31	335
2019-03-31	313
2019-06-30	438
2019-09-30	451
2019-12-31	445
2020-03-31	447
2020-06-30	460
2020-09-30	417
2020-12-31	388
2021-03-31	537
2021-06-30	542
2021-09-30	852
2021-12-31	527
2022-03-31	413
2022-06-30	379
2022-09-30	365
2022-12-31	251
2023-03-31	309
2023-06-30	412
2023-09-30	438