Quarter	US dollars
2004-12-31	288
2005-03-31	250
2005-06-30	145
2005-09-30	851
2005-12-31	671
2006-03-31	1214
2006-06-30	1620
2006-09-30	1373
2006-12-31	1470
2007-03-31	1555
2007-06-30	873
2007-09-30	2482
2007-12-31	2915
2008-03-31	3186
2008-06-30	3288
2008-09-30	3087
2008-12-31	3033
2009-03-31	2759
2009-06-30	3277
2009-09-30	3558
2009-12-31	2847
2010-03-31	3097
2010-06-30	2665
2010-09-30	632
2010-12-31	675
2011-03-31	575
2011-06-30	662
2011-09-30	2289
2011-12-31	656
2012-03-31	646
2012-06-30	701
2012-09-30	627
2012-12-31	658
2013-03-31	575
2013-06-30	752
2013-09-30	717
2013-12-31	866
2014-03-31	850
2014-06-30	845
2014-09-30	778
2014-12-31	837
2015-03-31	855
2015-06-30	867
2015-09-30	865
2015-12-31	668
2016-03-31	745
2016-06-30	442
2016-09-30	424
2016-12-31	543
2017-03-31	840
2017-06-30	637
2017-09-30	627
2017-12-31	397
2018-03-31	320
2018-06-30	207
2018-09-30	370
2018-12-31	336
2019-03-31	637
2019-06-30	580
2019-09-30	482
2019-12-31	450
2020-03-31	463
2020-06-30	454
2020-09-30	318
2020-12-31	183
2021-03-31	57
2021-06-30	62
2021-09-30	173
2021-12-31	140
2022-03-31	118
2022-06-30	57
2022-09-30	36
2022-12-31	92
2023-03-31	95
2023-06-30	211
2023-09-30	200