Quarter	US dollars
2004-12-31	2240604
2005-03-31	2431950
2005-06-30	2432767
2005-09-30	2683597
2005-12-31	2563285
2006-03-31	2884957
2006-06-30	2973714
2006-09-30	3151069
2006-12-31	3228309
2007-03-31	3560664
2007-06-30	3620647
2007-09-30	4071897
2007-12-31	4004974
2008-03-31	4432984
2008-06-30	4193537
2008-09-30	4375405
2008-12-31	3703268
2009-03-31	3634456
2009-06-30	3738172
2009-09-30	3762168
2009-12-31	3618675
2010-03-31	3855734
2010-06-30	3859122
2010-09-30	4042464
2010-12-31	3925693
2011-03-31	4089784
2011-06-30	4187631
2011-09-30	4124576
2011-12-31	3964146
2012-03-31	4218778
2012-06-30	4062376
2012-09-30	4059566
2012-12-31	4071387
2013-03-31	3901933
2013-06-30	3912043
2013-09-30	3929149
2013-12-31	3797024
2014-03-31	3854903
2014-06-30	3825064
2014-09-30	3703712
2014-12-31	3609392
2015-03-31	3520804
2015-06-30	3424431
2015-09-30	3232705
2015-12-31	3064511
2016-03-31	3124552
2016-06-30	3220210
2016-09-30	3116796
2016-12-31	3003230
2017-03-31	3197346
2017-06-30	3324593
2017-09-30	3397622
2017-12-31	3479559
2018-03-31	3572927
2018-06-30	3444168
2018-09-30	3441556
2018-12-31	3407431
2019-03-31	3538892
2019-06-30	3624401
2019-09-30	3605742
2019-12-31	3593053
2020-03-31	3844403
2020-06-30	3814122
2020-09-30	3897876
2020-12-31	4018560
2021-03-31	4069973
2021-06-30	4138059
2021-09-30	4148969
2021-12-31	4192929
2022-03-31	4243009
2022-06-30	4111015
2022-09-30	4035463
2022-12-31	4096584
2023-03-31	4261391
2023-06-30	4399224
2023-09-30	4372731