Quarter	US dollars
2004-12-31	852
2005-03-31	677
2005-06-30	909
2005-09-30	640
2005-12-31	874
2006-03-31	1022
2006-06-30	1248
2006-09-30	1119
2006-12-31	1008
2007-03-31	1006
2007-06-30	1194
2007-09-30	1147
2007-12-31	1165
2008-03-31	1117
2008-06-30	440
2008-09-30	565
2008-12-31	539
2009-03-31	556
2009-06-30	636
2009-09-30	467
2009-12-31	476
2010-03-31	429
2010-06-30	443
2010-09-30	1492
2010-12-31	2561
2011-03-31	2159
2011-06-30	2532
2011-09-30	4130
2011-12-31	2517
2012-03-31	6976
2012-06-30	6354
2012-09-30	5872
2012-12-31	6574
2013-03-31	10193
2013-06-30	10031
2013-09-30	10196
2013-12-31	8720
2014-03-31	8530
2014-06-30	7844
2014-09-30	7297
2014-12-31	6502
2015-03-31	6274
2015-06-30	6199
2015-09-30	6030
2015-12-31	5618
2016-03-31	6249
2016-06-30	5987
2016-09-30	5682
2016-12-31	5001
2017-03-31	4574
2017-06-30	4870
2017-09-30	4529
2017-12-31	4502
2018-03-31	3563
2018-06-30	3397
2018-09-30	3516
2018-12-31	2864
2019-03-31	3505
2019-06-30	4371
2019-09-30	3850
2019-12-31	3647
2020-03-31	3393
2020-06-30	3245
2020-09-30	3332
2020-12-31	3038
2021-03-31	2910
2021-06-30	2673
2021-09-30	3333
2021-12-31	3394
2022-03-31	3513
2022-06-30	4224
2022-09-30	4164
2022-12-31	3696
2023-03-31	3702
2023-06-30	3791
2023-09-30	3868