Quarter	US dollars
2004-12-31	61
2005-03-31	140
2005-06-30	172
2005-09-30	35
2005-12-31	129
2006-03-31	154
2006-06-30	211
2006-09-30	217
2006-12-31	225
2007-03-31	200
2007-06-30	255
2007-09-30	328
2007-12-31	293
2008-03-31	358
2008-06-30	326
2008-09-30	307
2008-12-31	395
2009-03-31	400
2009-06-30	425
2009-09-30	403
2009-12-31	409
2010-03-31	452
2010-06-30	464
2010-09-30	68
2010-12-31	92
2011-03-31	146
2011-06-30	220
2011-09-30	164
2011-12-31	182
2012-03-31	416
2012-06-30	424
2012-09-30	355
2012-12-31	291
2013-03-31	257
2013-06-30	179
2013-09-30	97
2013-12-31	106
2014-03-31	263
2014-06-30	450
2014-09-30	224
2014-12-31	523
2015-03-31	261
2015-06-30	547
2015-09-30	500
2015-12-31	485
2016-03-31	252
2016-06-30	267
2016-09-30	333
2016-12-31	410
2017-03-31	344
2017-06-30	194
2017-09-30	307
2017-12-31	359
2018-03-31	689
2018-06-30	1050
2018-09-30	956
2018-12-31	663
2019-03-31	607
2019-06-30	694
2019-09-30	972
2019-12-31	547
2020-03-31	752
2020-06-30	1355
2020-09-30	954
2020-12-31	378
2021-03-31	446
2021-06-30	837
2021-09-30	779
2021-12-31	667
2022-03-31	272
2022-06-30	336
2022-09-30	508
2022-12-31	1381
2023-03-31	797
2023-06-30	774
2023-09-30	1321