Quarter	US dollars
2004-12-31	1259
2005-03-31	1660
2005-06-30	1353
2005-09-30	2351
2005-12-31	2285
2006-03-31	2173
2006-06-30	2293
2006-09-30	2210
2006-12-31	3617
2007-03-31	3789
2007-06-30	3054
2007-09-30	5369
2007-12-31	3303
2008-03-31	3794
2008-06-30	3674
2008-09-30	3890
2008-12-31	3611
2009-03-31	2922
2009-06-30	2699
2009-09-30	2530
2009-12-31	2803
2010-03-31	2857
2010-06-30	3046
2010-09-30	2919
2010-12-31	2558
2011-03-31	628
2011-06-30	517
2011-09-30	480
2011-12-31	544
2012-03-31	612
2012-06-30	515
2012-09-30	488
2012-12-31	469
2013-03-31	615
2013-06-30	593
2013-09-30	544
2013-12-31	448
2014-03-31	539
2014-06-30	549
2014-09-30	501
2014-12-31	503
2015-03-31	575
2015-06-30	352
2015-09-30	279
2015-12-31	422
2016-03-31	102
2016-06-30	187
2016-09-30	277
2016-12-31	360
2017-03-31	375
2017-06-30	744
2017-09-30	935
2017-12-31	1119
2018-03-31	857
2018-06-30	593
2018-09-30	2582
2018-12-31	2578
2019-03-31	2760
2019-06-30	2926
2019-09-30	2608
2019-12-31	2354
2020-03-31	2433
2020-06-30	2432
2020-09-30	2412
2020-12-31	2064
2021-03-31	2080
2021-06-30	2197
2021-09-30	2091
2021-12-31	1868
2022-03-31	2044
2022-06-30	1432
2022-09-30	1386
2022-12-31	1902
2023-03-31	1710
2023-06-30	1726
2023-09-30	1837