Quarter	US dollars
2004-12-31	217
2005-03-31	539
2005-06-30	360
2005-09-30	150
2005-12-31	355
2006-03-31	534
2006-06-30	579
2006-09-30	499
2006-12-31	736
2007-03-31	792
2007-06-30	704
2007-09-30	1585
2007-12-31	1003
2008-03-31	980
2008-06-30	1164
2008-09-30	959
2008-12-31	976
2009-03-31	827
2009-06-30	1965
2009-09-30	1447
2009-12-31	1042
2010-03-31	1087
2010-06-30	1109
2010-09-30	1158
2010-12-31	1849
2011-03-31	2113
2011-06-30	2076
2011-09-30	1368
2011-12-31	1484
2012-03-31	1529
2012-06-30	1622
2012-09-30	3042
2012-12-31	3538
2013-03-31	4509
2013-06-30	5328
2013-09-30	3780
2013-12-31	3970
2014-03-31	3715
2014-06-30	4326
2014-09-30	3901
2014-12-31	3300
2015-03-31	3148
2015-06-30	2981
2015-09-30	2725
2015-12-31	2885
2016-03-31	2786
2016-06-30	2793
2016-09-30	2663
2016-12-31	2734
2017-03-31	2837
2017-06-30	2246
2017-09-30	1861
2017-12-31	1554
2018-03-31	1344
2018-06-30	1253
2018-09-30	1012
2018-12-31	992
2019-03-31	1105
2019-06-30	793
2019-09-30	795
2019-12-31	844
2020-03-31	1219
2020-06-30	1358
2020-09-30	390
2020-12-31	546
2021-03-31	353
2021-06-30	95
2021-09-30	139
2021-12-31	272
2022-03-31	500
2022-06-30	284
2022-09-30	521
2022-12-31	391
2023-03-31	541
2023-06-30	414
2023-09-30	788