Quarter	US dollars
2004-12-31	649
2005-03-31	701
2005-06-30	590
2005-09-30	451
2005-12-31	465
2006-03-31	559
2006-06-30	644
2006-09-30	643
2006-12-31	669
2007-03-31	977
2007-06-30	943
2007-09-30	990
2007-12-31	1467
2008-03-31	1284
2008-06-30	1745
2008-09-30	1643
2008-12-31	1284
2009-03-31	1189
2009-06-30	1207
2009-09-30	1136
2009-12-31	1448
2010-03-31	1407
2010-06-30	2231
2010-09-30	3970
2010-12-31	11030
2011-03-31	9980
2011-06-30	10030
2011-09-30	21494
2011-12-31	21700
2012-03-31	60757
2012-06-30	59626
2012-09-30	55404
2012-12-31	67110
2013-03-31	98461
2013-06-30	98928
2013-09-30	90528
2013-12-31	66299
2014-03-31	71994
2014-06-30	63589
2014-09-30	70605
2014-12-31	68454
2015-03-31	64589
2015-06-30	67852
2015-09-30	60603
2015-12-31	50099
2016-03-31	53945
2016-06-30	48336
2016-09-30	46790
2016-12-31	44617
2017-03-31	43578
2017-06-30	38695
2017-09-30	36487
2017-12-31	35149
2018-03-31	29455
2018-06-30	30111
2018-09-30	25246
2018-12-31	29574
2019-03-31	30643
2019-06-30	30695
2019-09-30	30262
2019-12-31	29013
2020-03-31	31012
2020-06-30	27536
2020-09-30	25805
2020-12-31	22782
2021-03-31	22158
2021-06-30	22843
2021-09-30	22071
2021-12-31	22910
2022-03-31	23876
2022-06-30	22022
2022-09-30	13976
2022-12-31	12491
2023-03-31	11502
2023-06-30	9476
2023-09-30	9663