Quarter	US dollars
2004-12-31	731
2005-03-31	1038
2005-06-30	1027
2005-09-30	1224
2005-12-31	1148
2006-03-31	1592
2006-06-30	1474
2006-09-30	2543
2006-12-31	1990
2007-03-31	1963
2007-06-30	1029
2007-09-30	1644
2007-12-31	2835
2008-03-31	1928
2008-06-30	3317
2008-09-30	2780
2008-12-31	2260
2009-03-31	2688
2009-06-30	3406
2009-09-30	3722
2009-12-31	3091
2010-03-31	2638
2010-06-30	5119
2010-09-30	7279
2010-12-31	5554
2011-03-31	8901
2011-06-30	9724
2011-09-30	6386
2011-12-31	5461
2012-03-31	7792
2012-06-30	6541
2012-09-30	6718
2012-12-31	5997
2013-03-31	6627
2013-06-30	6390
2013-09-30	5940
2013-12-31	8211
2014-03-31	6738
2014-06-30	8017
2014-09-30	7827
2014-12-31	7084
2015-03-31	6313
2015-06-30	7938
2015-09-30	6730
2015-12-31	4881
2016-03-31	3553
2016-06-30	9874
2016-09-30	9569
2016-12-31	8667
2017-03-31	9353
2017-06-30	6082
2017-09-30	4608
2017-12-31	6409
2018-03-31	7537
2018-06-30	3170
2018-09-30	3295
2018-12-31	2507
2019-03-31	2964
2019-06-30	3479
2019-09-30	2864
2019-12-31	2613
2020-03-31	2648
2020-06-30	2493
2020-09-30	3103
2020-12-31	3117
2021-03-31	3266
2021-06-30	3069
2021-09-30	2623
2021-12-31	2446
2022-03-31	2628
2022-06-30	2234
2022-09-30	2201
2022-12-31	2061
2023-03-31	2133
2023-06-30	2321
2023-09-30	5215