Quarter	US dollars
2004-12-31	363
2005-03-31	340
2005-06-30	593
2005-09-30	792
2005-12-31	1336
2006-03-31	2482
2006-06-30	1820
2006-09-30	1242
2006-12-31	1399
2007-03-31	1612
2007-06-30	1419
2007-09-30	894
2007-12-31	2347
2008-03-31	1836
2008-06-30	2193
2008-09-30	1738
2008-12-31	709
2009-03-31	1423
2009-06-30	1263
2009-09-30	1065
2009-12-31	1079
2010-03-31	833
2010-06-30	842
2010-09-30	596
2010-12-31	410
2011-03-31	382
2011-06-30	250
2011-09-30	433
2011-12-31	472
2012-03-31	478
2012-06-30	496
2012-09-30	200
2012-12-31	189
2013-03-31	232
2013-06-30	137
2013-09-30	78
2013-12-31	150
2014-03-31	308
2014-06-30	262
2014-09-30	159
2014-12-31	47
2015-03-31	43
2015-06-30	44
2015-09-30	0
2015-12-31	0
2016-03-31	0
2016-06-30	1
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	1
2018-12-31	3
2019-03-31	0
2019-06-30	0
2019-09-30	0
2019-12-31	1
2020-03-31	2
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	1
2021-06-30	1
2021-09-30	1
2021-12-31	0
2022-03-31	1
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	1
2023-09-30	1