Quarter	US dollars
2004-12-31	200
2005-03-31	198
2005-06-30	339
2005-09-30	292
2005-12-31	304
2006-03-31	324
2006-06-30	362
2006-09-30	390
2006-12-31	411
2007-03-31	410
2007-06-30	329
2007-09-30	371
2007-12-31	874
2008-03-31	1940
2008-06-30	1706
2008-09-30	1342
2008-12-31	4311
2009-03-31	4251
2009-06-30	4743
2009-09-30	4627
2009-12-31	4838
2010-03-31	5589
2010-06-30	5742
2010-09-30	6014
2010-12-31	6707
2011-03-31	6425
2011-06-30	6096
2011-09-30	5999
2011-12-31	6457
2012-03-31	6086
2012-06-30	5840
2012-09-30	6088
2012-12-31	3901
2013-03-31	4369
2013-06-30	4650
2013-09-30	4291
2013-12-31	2116
2014-03-31	2849
2014-06-30	2390
2014-09-30	2430
2014-12-31	2088
2015-03-31	2420
2015-06-30	1807
2015-09-30	1833
2015-12-31	2221
2016-03-31	2083
2016-06-30	2307
2016-09-30	2681
2016-12-31	2255
2017-03-31	2284
2017-06-30	2728
2017-09-30	2297
2017-12-31	2397
2018-03-31	2266
2018-06-30	2630
2018-09-30	3335
2018-12-31	3667
2019-03-31	4046
2019-06-30	3717
2019-09-30	4542
2019-12-31	4641
2020-03-31	6184
2020-06-30	5984
2020-09-30	4774
2020-12-31	4481
2021-03-31	4380
2021-06-30	4364
2021-09-30	4517
2021-12-31	4500
2022-03-31	4594
2022-06-30	4673
2022-09-30	4587
2022-12-31	6188
2023-03-31	5679
2023-06-30	5120
2023-09-30	4600