Quarter	US dollars
2004-12-31	75
2005-03-31	416
2005-06-30	439
2005-09-30	382
2005-12-31	522
2006-03-31	626
2006-06-30	544
2006-09-30	448
2006-12-31	466
2007-03-31	567
2007-06-30	780
2007-09-30	528
2007-12-31	532
2008-03-31	696
2008-06-30	1126
2008-09-30	381
2008-12-31	269
2009-03-31	284
2009-06-30	1009
2009-09-30	1081
2009-12-31	648
2010-03-31	830
2010-06-30	274
2010-09-30	503
2010-12-31	208
2011-03-31	208
2011-06-30	85
2011-09-30	159
2011-12-31	124
2012-03-31	43
2012-06-30	25
2012-09-30	29
2012-12-31	39
2013-03-31	46
2013-06-30	50
2013-09-30	180
2013-12-31	111
2014-03-31	37
2014-06-30	29
2014-09-30	28
2014-12-31	53
2015-03-31	53
2015-06-30	33
2015-09-30	94
2015-12-31	53
2016-03-31	200
2016-06-30	31
2016-09-30	9
2016-12-31	11
2017-03-31	33
2017-06-30	196
2017-09-30	412
2017-12-31	284
2018-03-31	253
2018-06-30	223
2018-09-30	284
2018-12-31	296
2019-03-31	261
2019-06-30	356
2019-09-30	281
2019-12-31	292
2020-03-31	273
2020-06-30	463
2020-09-30	340
2020-12-31	349
2021-03-31	280
2021-06-30	268
2021-09-30	260
2021-12-31	278
2022-03-31	265
2022-06-30	234
2022-09-30	186
2022-12-31	181
2023-03-31	300
2023-06-30	174
2023-09-30	181