Quarter	US dollars
2004-12-31	324
2005-03-31	529
2005-06-30	371
2005-09-30	371
2005-12-31	960
2006-03-31	1072
2006-06-30	1185
2006-09-30	1194
2006-12-31	1360
2007-03-31	1640
2007-06-30	1228
2007-09-30	1334
2007-12-31	1700
2008-03-31	1371
2008-06-30	1073
2008-09-30	884
2008-12-31	470
2009-03-31	896
2009-06-30	784
2009-09-30	867
2009-12-31	904
2010-03-31	840
2010-06-30	920
2010-09-30	948
2010-12-31	1683
2011-03-31	2292
2011-06-30	2002
2011-09-30	2541
2011-12-31	1164
2012-03-31	1649
2012-06-30	1948
2012-09-30	1870
2012-12-31	1851
2013-03-31	2358
2013-06-30	2560
2013-09-30	3733
2013-12-31	3111
2014-03-31	3526
2014-06-30	3226
2014-09-30	3429
2014-12-31	4189
2015-03-31	2574
2015-06-30	2240
2015-09-30	2134
2015-12-31	1434
2016-03-31	1827
2016-06-30	1462
2016-09-30	1341
2016-12-31	1406
2017-03-31	1786
2017-06-30	1454
2017-09-30	2136
2017-12-31	1947
2018-03-31	1879
2018-06-30	1899
2018-09-30	1652
2018-12-31	2860
2019-03-31	3287
2019-06-30	3009
2019-09-30	3440
2019-12-31	2847
2020-03-31	2383
2020-06-30	2015
2020-09-30	1899
2020-12-31	2857
2021-03-31	1200
2021-06-30	1524
2021-09-30	824
2021-12-31	2001
2022-03-31	1885
2022-06-30	2122
2022-09-30	2803
2022-12-31	2707
2023-03-31	3065
2023-06-30	2964
2023-09-30	2987