Quarter	US dollars
2004-12-31	83
2005-03-31	96
2005-06-30	68
2005-09-30	64
2005-12-31	43
2006-03-31	43
2006-06-30	55
2006-09-30	32
2006-12-31	41
2007-03-31	25
2007-06-30	40
2007-09-30	45
2007-12-31	44
2008-03-31	56
2008-06-30	66
2008-09-30	52
2008-12-31	49
2009-03-31	59
2009-06-30	84
2009-09-30	64
2009-12-31	63
2010-03-31	68
2010-06-30	150
2010-09-30	214
2010-12-31	268
2011-03-31	256
2011-06-30	302
2011-09-30	221
2011-12-31	272
2012-03-31	321
2012-06-30	425
2012-09-30	318
2012-12-31	349
2013-03-31	424
2013-06-30	467
2013-09-30	432
2013-12-31	405
2014-03-31	422
2014-06-30	407
2014-09-30	481
2014-12-31	423
2015-03-31	420
2015-06-30	444
2015-09-30	544
2015-12-31	560
2016-03-31	571
2016-06-30	509
2016-09-30	539
2016-12-31	544
2017-03-31	513
2017-06-30	607
2017-09-30	687
2017-12-31	755
2018-03-31	856
2018-06-30	890
2018-09-30	939
2018-12-31	997
2019-03-31	1038
2019-06-30	908
2019-09-30	931
2019-12-31	1042
2020-03-31	1034
2020-06-30	1156
2020-09-30	986
2020-12-31	946
2021-03-31	1272
2021-06-30	1343
2021-09-30	1454
2021-12-31	1559
2022-03-31	1566
2022-06-30	1443
2022-09-30	1471
2022-12-31	1515
2023-03-31	1422
2023-06-30	1319
2023-09-30	1295