Quarter	US dollars
2004-12-31	190
2005-03-31	168
2005-06-30	147
2005-09-30	140
2005-12-31	232
2006-03-31	248
2006-06-30	311
2006-09-30	549
2006-12-31	689
2007-03-31	561
2007-06-30	532
2007-09-30	870
2007-12-31	536
2008-03-31	739
2008-06-30	748
2008-09-30	608
2008-12-31	1256
2009-03-31	798
2009-06-30	1314
2009-09-30	534
2009-12-31	759
2010-03-31	986
2010-06-30	1807
2010-09-30	2379
2010-12-31	1486
2011-03-31	1000
2011-06-30	1132
2011-09-30	1097
2011-12-31	1617
2012-03-31	2164
2012-06-30	1838
2012-09-30	675
2012-12-31	503
2013-03-31	471
2013-06-30	993
2013-09-30	355
2013-12-31	345
2014-03-31	514
2014-06-30	448
2014-09-30	434
2014-12-31	284
2015-03-31	339
2015-06-30	392
2015-09-30	254
2015-12-31	313
2016-03-31	477
2016-06-30	215
2016-09-30	259
2016-12-31	630
2017-03-31	1079
2017-06-30	549
2017-09-30	433
2017-12-31	505
2018-03-31	344
2018-06-30	297
2018-09-30	300
2018-12-31	315
2019-03-31	400
2019-06-30	367
2019-09-30	350
2019-12-31	316
2020-03-31	506
2020-06-30	326
2020-09-30	306
2020-12-31	276
2021-03-31	139
2021-06-30	152
2021-09-30	178
2021-12-31	204
2022-03-31	217
2022-06-30	209
2022-09-30	158
2022-12-31	263
2023-03-31	240
2023-06-30	332
2023-09-30	342