Quarter	US dollars
2004-12-31	217
2005-03-31	270
2005-06-30	240
2005-09-30	279
2005-12-31	282
2006-03-31	286
2006-06-30	340
2006-09-30	342
2006-12-31	317
2007-03-31	402
2007-06-30	347
2007-09-30	320
2007-12-31	482
2008-03-31	292
2008-06-30	281
2008-09-30	262
2008-12-31	265
2009-03-31	248
2009-06-30	227
2009-09-30	248
2009-12-31	446
2010-03-31	467
2010-06-30	579
2010-09-30	444
2010-12-31	573
2011-03-31	494
2011-06-30	582
2011-09-30	567
2011-12-31	540
2012-03-31	681
2012-06-30	668
2012-09-30	651
2012-12-31	538
2013-03-31	1028
2013-06-30	1107
2013-09-30	1083
2013-12-31	1208
2014-03-31	1155
2014-06-30	1200
2014-09-30	1089
2014-12-31	1039
2015-03-31	1148
2015-06-30	1189
2015-09-30	1515
2015-12-31	1346
2016-03-31	1538
2016-06-30	1491
2016-09-30	1716
2016-12-31	2514
2017-03-31	2506
2017-06-30	2230
2017-09-30	2196
2017-12-31	2144
2018-03-31	2400
2018-06-30	2415
2018-09-30	1043
2018-12-31	2667
2019-03-31	2869
2019-06-30	3471
2019-09-30	3678
2019-12-31	3828
2020-03-31	4347
2020-06-30	3595
2020-09-30	3703
2020-12-31	3433
2021-03-31	3375
2021-06-30	3669
2021-09-30	3661
2021-12-31	3557
2022-03-31	3683
2022-06-30	4028
2022-09-30	4137
2022-12-31	3753
2023-03-31	4394
2023-06-30	3750
2023-09-30	4111