Quarter	US dollars
2004-12-31	730
2007-12-31	2825
2008-03-31	1916
2008-12-31	1508
2009-09-30	2935
2009-12-31	2180
2010-03-31	2113
2010-06-30	2768
2010-09-30	4675
2010-12-31	3043
2011-03-31	6495
2011-06-30	5907
2011-09-30	4195
2011-12-31	3502
2012-03-31	5221
2012-06-30	4489
2012-09-30	4418
2012-12-31	3646
2013-03-31	4412
2013-06-30	4088
2013-12-31	6092
2014-03-31	4600
2014-06-30	5815
2014-09-30	5810
2014-12-31	4814
2015-03-31	4457
2015-06-30	5430
2015-09-30	4046
2015-12-31	3084
2016-03-31	1842
2016-06-30	8292
2016-09-30	8086
2016-12-31	7472
2017-03-31	8255
2017-06-30	4925
2017-09-30	3382
2017-12-31	4943
2018-03-31	6264
2018-06-30	1786
2018-09-30	2030
2018-12-31	1343
2019-03-31	1693
2019-06-30	2104
2019-09-30	1684
2019-12-31	1383
2020-03-31	1390
2020-06-30	1044
2020-09-30	1706
2020-12-31	1320
2021-03-31	1756
2021-06-30	1617
2021-09-30	1272
2021-12-31	1296
2022-03-31	1531
2022-06-30	1144
2022-09-30	1646
2022-12-31	1183
2023-03-31	1342
2023-06-30	1473
2023-09-30	4760