Quarter	US dollars
2004-12-31	388
2005-03-31	318
2005-06-30	432
2005-09-30	410
2005-12-31	633
2006-03-31	572
2006-06-30	1888
2006-09-30	1999
2006-12-31	523
2007-03-31	971
2007-06-30	712
2007-09-30	534
2007-12-31	820
2008-03-31	1622
2008-06-30	1897
2008-09-30	2156
2008-12-31	1320
2009-03-31	1096
2009-06-30	1026
2009-09-30	1471
2009-12-31	1145
2010-03-31	1549
2010-06-30	5454
2010-09-30	6047
2010-12-31	7289
2011-03-31	8488
2011-06-30	7957
2011-09-30	8327
2011-12-31	6146
2012-03-31	6896
2012-06-30	7363
2012-09-30	6369
2012-12-31	4438
2013-03-31	3801
2013-06-30	3554
2013-09-30	2988
2013-12-31	2392
2014-03-31	3328
2014-06-30	2182
2014-09-30	1532
2014-12-31	1650
2015-03-31	1465
2015-06-30	1359
2015-09-30	1447
2015-12-31	1778
2016-03-31	4260
2016-06-30	4511
2016-09-30	3935
2016-12-31	861
2017-03-31	1642
2017-06-30	2612
2017-09-30	1772
2017-12-31	1781
2018-03-31	2725
2018-06-30	2527
2018-09-30	1652
2018-12-31	2327
2019-03-31	2822
2019-06-30	1867
2019-09-30	1656
2019-12-31	1428
2020-03-31	1522
2020-06-30	2314
2020-09-30	2598
2020-12-31	1639
2021-03-31	1262
2021-06-30	1396
2021-09-30	1193
2021-12-31	1222
2022-03-31	1077
2022-06-30	882
2022-09-30	1073
2022-12-31	1281
2023-03-31	1142
2023-06-30	945
2023-09-30	1203