Quarter	US dollars
2004-12-31	582
2005-03-31	703
2005-06-30	728
2005-09-30	769
2005-12-31	1440
2006-03-31	1421
2006-06-30	1461
2006-09-30	1496
2006-12-31	1781
2007-03-31	1700
2007-06-30	560
2007-09-30	670
2007-12-31	828
2008-03-31	1419
2008-06-30	844
2008-09-30	964
2008-12-31	748
2009-03-31	821
2009-06-30	764
2009-09-30	843
2009-12-31	2773
2010-03-31	1671
2010-06-30	2101
2010-09-30	1801
2010-12-31	2380
2011-03-31	3631
2011-06-30	3369
2011-09-30	3016
2011-12-31	3205
2012-03-31	3471
2012-06-30	4210
2012-09-30	4809
2012-12-31	4779
2013-03-31	5227
2013-06-30	4271
2013-09-30	5614
2013-12-31	3443
2014-03-31	3936
2014-06-30	4741
2014-09-30	5309
2014-12-31	6023
2015-03-31	4055
2015-06-30	4101
2015-09-30	3828
2015-12-31	3720
2016-03-31	3109
2016-06-30	2593
2016-09-30	3384
2016-12-31	3675
2017-03-31	3276
2017-06-30	2919
2017-09-30	3692
2017-12-31	3559
2018-03-31	3590
2018-06-30	3635
2018-09-30	2989
2018-12-31	3873
2019-03-31	4402
2019-06-30	4371
2019-09-30	4457
2019-12-31	3923
2020-03-31	3815
2020-06-30	3327
2020-09-30	3126
2020-12-31	4366
2021-03-31	2489
2021-06-30	2331
2021-09-30	1878
2021-12-31	2721
2022-03-31	2873
2022-06-30	3036
2022-09-30	3993
2022-12-31	3792
2023-03-31	4060
2023-06-30	4206
2023-09-30	4347