Quarter	US dollars
2004-12-31	2479
2005-03-31	2450
2005-06-30	2551
2005-09-30	49654
2005-12-31	53218
2006-03-31	57540
2006-06-30	53919
2006-09-30	52803
2006-12-31	60377
2007-03-31	62277
2007-06-30	67172
2007-09-30	74565
2007-12-31	78887
2008-03-31	69004
2008-06-30	76420
2008-09-30	72186
2008-12-31	64699
2009-03-31	65405
2009-06-30	78501
2009-09-30	79354
2009-12-31	81223
2010-03-31	84192
2010-06-30	80018
2010-09-30	86298
2010-12-31	94071
2011-03-31	91650
2011-06-30	90840
2011-09-30	78370
2011-12-31	77726
2012-03-31	85836
2012-06-30	81313
2012-09-30	79929
2012-12-31	80011
2013-03-31	73951
2013-06-30	67699
2013-09-30	67895
2013-12-31	66305
2014-03-31	67084
2014-06-30	67911
2014-09-30	65772
2014-12-31	65438
2015-03-31	65097
2015-06-30	68824
2015-09-30	65730
2015-12-31	64556
2016-03-31	58642
2016-06-30	57678
2016-09-30	61723
2016-12-31	62142
2017-03-31	65583
2017-06-30	7502
2017-09-30	8204
2017-12-31	8807
2018-03-31	9267
2018-06-30	6801
2018-09-30	6917
2018-12-31	7626
2019-03-31	7693
2019-06-30	6976
2019-09-30	6627
2019-12-31	7194
2020-03-31	5436
2020-06-30	5255
2020-09-30	5310
2020-12-31	5507
2021-03-31	5772
2021-06-30	6104
2021-09-30	6443
2021-12-31	6305
2022-03-31	7333
2022-06-30	6512
2022-09-30	6215
2022-12-31	6836
2023-03-31	6108
2023-06-30	5862
2023-09-30	5782