Quarter	US dollars
2004-12-31	1524
2005-03-31	2267
2005-06-30	1873
2005-09-30	1348
2005-12-31	1607
2006-03-31	1814
2006-06-30	1881
2006-09-30	2376
2006-12-31	2579
2007-03-31	2703
2007-06-30	2504
2007-09-30	1709
2007-12-31	2043
2008-03-31	2834
2008-06-30	1976
2008-09-30	1399
2008-12-31	1553
2009-03-31	921
2009-06-30	812
2009-09-30	758
2009-12-31	1054
2010-03-31	558
2010-06-30	777
2010-09-30	1008
2010-12-31	1235
2011-03-31	917
2011-06-30	684
2011-09-30	629
2011-12-31	614
2012-03-31	770
2012-06-30	864
2012-09-30	911
2012-12-31	855
2013-03-31	745
2013-06-30	963
2013-09-30	580
2013-12-31	512
2014-03-31	654
2014-06-30	573
2014-09-30	606
2014-12-31	769
2015-03-31	836
2015-06-30	837
2015-09-30	1504
2015-12-31	713
2016-03-31	740
2016-06-30	680
2016-09-30	842
2016-12-31	853
2017-03-31	793
2017-06-30	487
2017-09-30	545
2017-12-31	504
2018-03-31	180
2018-06-30	252
2018-09-30	352
2018-12-31	69
2019-03-31	138
2019-06-30	65
2019-09-30	92
2019-12-31	98
2020-03-31	135
2020-06-30	126
2020-09-30	97
2020-12-31	101
2021-03-31	211
2021-06-30	180
2021-09-30	375
2021-12-31	435
2022-03-31	-436
2022-06-30	372
2022-09-30	370
2022-12-31	334
2023-03-31	348
2023-06-30	283
2023-09-30	281