Quarter	US dollars
2004-12-31	1413
2005-03-31	2032
2005-06-30	2269
2005-09-30	2117
2005-12-31	2012
2006-03-31	2347
2006-06-30	2469
2006-09-30	2991
2006-12-31	2407
2007-03-31	3507
2007-06-30	3182
2007-09-30	4136
2007-12-31	3615
2008-03-31	5183
2008-06-30	5686
2008-09-30	6932
2008-12-31	3496
2009-03-31	5182
2009-06-30	5935
2009-09-30	6431
2009-12-31	4938
2010-03-31	3634
2010-06-30	3064
2010-09-30	3569
2010-12-31	2198
2011-03-31	2792
2011-06-30	3882
2011-09-30	3086
2011-12-31	2829
2012-03-31	3917
2012-06-30	3669
2012-09-30	4157
2012-12-31	5581
2013-03-31	5919
2013-06-30	4831
2013-09-30	5658
2013-12-31	5436
2014-03-31	4037
2014-06-30	4276
2014-09-30	3516
2014-12-31	4892
2015-03-31	5332
2015-06-30	4761
2015-09-30	5350
2015-12-31	2841
2016-03-31	4604
2016-06-30	3275
2016-09-30	2528
2016-12-31	2480
2017-03-31	1451
2017-06-30	3416
2017-09-30	1764
2017-12-31	2105
2018-03-31	2957
2018-06-30	3767
2018-09-30	4002
2018-12-31	3211
2019-03-31	3654
2019-06-30	4562
2019-09-30	4156
2019-12-31	3152
2020-03-31	2436
2020-06-30	3160
2020-09-30	3113
2020-12-31	1930
2021-03-31	3940
2021-06-30	2908
2021-09-30	2636
2021-12-31	3054
2022-03-31	2986
2022-06-30	2073
2022-09-30	2137
2022-12-31	1778
2023-03-31	2937
2023-06-30	4043
2023-09-30	5214