Quarter	US dollars
2004-12-31	382
2005-03-31	826
2005-06-30	771
2005-09-30	851
2005-12-31	977
2006-03-31	1476
2006-06-30	775
2006-09-30	822
2006-12-31	777
2007-03-31	859
2007-06-30	813
2007-09-30	913
2007-12-31	966
2008-03-31	1085
2008-06-30	1564
2008-09-30	1451
2008-12-31	1235
2009-03-31	1081
2009-06-30	710
2009-09-30	740
2009-12-31	728
2010-03-31	705
2010-06-30	1005
2010-09-30	1018
2010-12-31	734
2011-03-31	785
2011-06-30	649
2011-09-30	636
2011-12-31	572
2012-03-31	563
2012-06-30	609
2012-09-30	720
2012-12-31	931
2013-03-31	750
2013-06-30	696
2013-09-30	622
2013-12-31	724
2014-03-31	640
2014-06-30	562
2014-09-30	618
2014-12-31	590
2015-03-31	595
2015-06-30	607
2015-09-30	473
2015-12-31	525
2016-03-31	555
2016-06-30	501
2016-09-30	416
2016-12-31	413
2017-03-31	385
2017-06-30	327
2017-09-30	357
2017-12-31	315
2018-03-31	446
2018-06-30	477
2018-09-30	387
2018-12-31	443
2019-03-31	375
2019-06-30	523
2019-09-30	721
2019-12-31	727
2020-03-31	946
2020-06-30	1128
2020-09-30	1211
2020-12-31	909
2021-03-31	1000
2021-06-30	916
2021-09-30	1301
2021-12-31	1166
2022-03-31	1223
2022-06-30	1150
2022-09-30	1170
2022-12-31	793
2023-03-31	698
2023-06-30	657
2023-09-30	676