Quarter	US dollars
2004-12-31	551
2005-03-31	612
2005-06-30	710
2005-09-30	635
2005-12-31	601
2006-03-31	347
2006-06-30	318
2006-09-30	340
2006-12-31	622
2007-03-31	551
2007-06-30	592
2007-09-30	658
2007-12-31	838
2008-03-31	1681
2008-06-30	961
2008-09-30	936
2008-12-31	827
2009-03-31	1159
2009-06-30	1204
2009-09-30	1051
2009-12-31	1143
2010-03-31	1330
2010-06-30	980
2010-09-30	811
2010-12-31	891
2011-03-31	885
2011-06-30	1103
2011-09-30	1170
2011-12-31	1167
2012-03-31	1243
2012-06-30	1777
2012-09-30	2642
2012-12-31	2210
2013-03-31	3047
2013-06-30	3126
2013-09-30	2588
2013-12-31	2483
2014-03-31	2551
2014-06-30	2228
2014-09-30	1738
2014-12-31	2068
2015-03-31	2233
2015-06-30	2710
2015-09-30	2422
2015-12-31	2235
2016-03-31	1937
2016-06-30	2259
2016-09-30	2264
2016-12-31	2529
2017-03-31	2396
2017-06-30	2963
2017-09-30	2882
2017-12-31	3038
2018-03-31	2866
2018-06-30	2722
2018-09-30	2660
2018-12-31	2710
2019-03-31	1751
2019-06-30	1924
2019-09-30	2165
2019-12-31	2256
2020-03-31	1765
2020-06-30	2260
2020-09-30	2842
2020-12-31	2771
2021-03-31	3141
2021-06-30	3014
2021-09-30	2962
2021-12-31	3097
2022-03-31	3063
2022-06-30	2896
2022-09-30	2947
2022-12-31	2238
2023-03-31	2829
2023-06-30	2558
2023-09-30	725