Quarter	US dollars
2004-12-31	184
2005-03-31	289
2005-06-30	231
2005-09-30	168
2005-12-31	194
2006-03-31	453
2006-06-30	669
2006-09-30	682
2006-12-31	951
2007-03-31	1210
2007-06-30	1168
2007-09-30	2376
2007-12-31	1294
2008-03-31	1375
2008-06-30	2012
2008-09-30	2201
2008-12-31	1583
2009-03-31	2799
2009-06-30	1457
2009-09-30	2210
2009-12-31	1597
2010-03-31	2631
2010-06-30	2641
2010-09-30	2370
2010-12-31	2165
2011-03-31	2946
2011-06-30	1591
2011-09-30	2419
2011-12-31	2143
2012-03-31	3594
2012-06-30	2364
2012-09-30	2521
2012-12-31	2196
2013-03-31	3358
2013-06-30	3267
2013-09-30	2719
2013-12-31	1916
2014-03-31	2624
2014-06-30	2886
2014-09-30	3228
2014-12-31	3398
2015-03-31	5241
2015-06-30	5013
2015-09-30	5673
2015-12-31	5864
2016-03-31	5311
2016-06-30	4812
2016-09-30	4555
2016-12-31	5305
2017-03-31	3543
2017-06-30	5051
2017-09-30	5745
2017-12-31	6529
2018-03-31	7252
2018-06-30	6689
2018-09-30	7296
2018-12-31	6622
2019-03-31	6948
2019-06-30	6690
2019-09-30	6835
2019-12-31	7221
2020-03-31	9196
2020-06-30	10129
2020-09-30	10267
2020-12-31	11830
2021-03-31	11724
2021-06-30	11576
2021-09-30	11745
2021-12-31	11013
2022-03-31	11652
2022-06-30	12124
2022-09-30	12383
2022-12-31	13123
2023-03-31	12322
2023-06-30	12167
2023-09-30	12364