Quarter	US dollars
2004-12-31	1244
2005-03-31	2028
2005-06-30	1332
2005-09-30	907
2005-12-31	1845
2006-03-31	2515
2006-06-30	2293
2006-09-30	2283
2006-12-31	2337
2007-03-31	1081
2007-06-30	3144
2007-09-30	2484
2007-12-31	2570
2008-03-31	1638
2008-06-30	1998
2008-09-30	2295
2008-12-31	714
2009-03-31	803
2009-06-30	599
2009-09-30	195
2009-12-31	202
2010-03-31	-117
2010-06-30	-1204
2010-09-30	-510
2010-12-31	-913
2011-03-31	561
2011-06-30	1180
2011-09-30	-196
2011-12-31	-370
2012-03-31	-1847
2012-06-30	-1848
2012-09-30	-1838
2012-12-31	-1638
2013-03-31	-1530
2013-06-30	-1253
2013-09-30	-368
2013-12-31	-919
2014-03-31	-1274
2014-06-30	-1472
2014-09-30	-1047
2014-12-31	-1288
2015-03-31	-2119
2015-06-30	-1689
2015-09-30	-806
2015-12-31	-1311
2016-03-31	-1620
2016-06-30	-1338
2016-09-30	-578
2016-12-31	-1079
2017-03-31	-1460
2017-06-30	-1498
2017-09-30	-1118
2017-12-31	-1759
2018-03-31	-1772
2018-06-30	-1958
2018-09-30	-1785
2018-12-31	-1030
2019-03-31	-1127
2019-06-30	627
2019-09-30	108
2019-12-31	36
2020-03-31	-91
2020-06-30	-201
2020-09-30	331
2020-12-31	378
2021-03-31	407
2021-06-30	423
2021-09-30	422
2021-12-31	403
2022-03-31	417
2022-06-30	433
2022-09-30	561
2022-12-31	615
2023-03-31	695
2023-06-30	523
2023-09-30	642