Quarter	US dollars
2004-12-31	741
2005-03-31	630
2005-06-30	932
2005-09-30	1058
2005-12-31	1172
2006-03-31	3051
2006-06-30	3166
2006-09-30	2010
2006-12-31	1734
2007-03-31	2246
2007-06-30	1589
2007-09-30	5719
2007-12-31	5634
2008-03-31	5171
2008-06-30	4374
2008-09-30	4653
2008-12-31	3866
2009-03-31	3626
2009-06-30	4310
2009-09-30	5562
2009-12-31	3777
2010-03-31	3906
2010-06-30	3486
2010-09-30	3223
2010-12-31	3302
2011-03-31	2696
2011-06-30	3831
2011-09-30	4367
2011-12-31	5121
2012-03-31	6503
2012-06-30	5826
2012-09-30	4071
2012-12-31	3441
2013-03-31	3373
2013-06-30	3218
2013-09-30	3602
2013-12-31	3732
2014-03-31	2596
2014-06-30	3115
2014-09-30	3385
2014-12-31	2179
2015-03-31	3036
2015-06-30	2653
2015-09-30	2963
2015-12-31	2568
2016-03-31	3208
2016-06-30	3710
2016-09-30	3618
2016-12-31	3182
2017-03-31	3368
2017-06-30	4282
2017-09-30	4697
2017-12-31	4115
2018-03-31	4237
2018-06-30	2746
2018-09-30	2949
2018-12-31	4592
2019-03-31	4761
2019-06-30	5470
2019-09-30	5373
2019-12-31	5124
2020-03-31	3431
2020-06-30	2314
2020-09-30	2569
2020-12-31	2962
2021-03-31	1755
2021-06-30	2110
2021-09-30	2899
2021-12-31	2600
2022-03-31	3475
2022-06-30	3462
2022-09-30	4337
2022-12-31	5287
2023-03-31	4077
2023-06-30	4251
2023-09-30	3912