Quarter	US dollars
2004-12-31	344
2005-03-31	4
2005-06-30	9
2005-09-30	7
2005-12-31	0
2006-03-31	0
2006-06-30	76
2006-09-30	41
2006-12-31	35
2007-03-31	126
2007-06-30	0
2007-09-30	0
2007-12-31	597
2008-03-31	489
2008-06-30	129
2008-09-30	201
2008-12-31	345
2009-03-31	1197
2009-06-30	1499
2009-09-30	1420
2009-12-31	1382
2010-03-31	3179
2010-06-30	2282
2010-09-30	4134
2010-12-31	4975
2011-03-31	6301
2011-06-30	3293
2011-09-30	1656
2011-12-31	2032
2012-03-31	1478
2012-06-30	1940
2012-09-30	1284
2012-12-31	3321
2013-03-31	1627
2013-06-30	1316
2013-09-30	1783
2013-12-31	1894
2014-03-31	2266
2014-06-30	2065
2014-09-30	1853
2014-12-31	1356
2015-03-31	1220
2015-06-30	1675
2015-09-30	1768
2015-12-31	688
2016-03-31	3800
2016-06-30	3984
2016-09-30	6932
2016-12-31	4034
2017-03-31	3052
2017-06-30	5938
2017-09-30	6324
2017-12-31	5381
2018-03-31	6788
2018-06-30	5302
2018-09-30	5621
2018-12-31	6374
2019-03-31	5535
2019-06-30	4417
2019-09-30	4518
2019-12-31	5515
2020-03-31	5189
2020-06-30	5244
2020-09-30	4491
2020-12-31	4533
2021-03-31	4449
2021-06-30	4038
2021-09-30	3491
2021-12-31	3136
2022-03-31	3248
2022-06-30	3533
2022-09-30	2874
2022-12-31	2806
2023-03-31	536
2023-06-30	577
2023-09-30	589