Quarter	US dollars
2004-12-31	996
2005-03-31	1053
2005-06-30	1065
2005-09-30	1100
2005-12-31	1193
2006-03-31	1263
2006-06-30	2352
2006-09-30	2393
2006-12-31	2722
2007-03-31	2724
2007-06-30	2996
2007-09-30	4609
2007-12-31	4213
2008-03-31	4114
2008-06-30	4118
2008-09-30	4006
2008-12-31	3769
2009-03-31	3171
2009-06-30	3437
2009-09-30	3434
2009-12-31	3556
2010-03-31	3426
2010-06-30	3227
2010-09-30	2513
2010-12-31	2686
2011-03-31	2751
2011-06-30	824
2011-09-30	2279
2011-12-31	2200
2012-03-31	2276
2012-06-30	1954
2012-09-30	2211
2012-12-31	1992
2013-03-31	1949
2013-06-30	1897
2013-09-30	1885
2013-12-31	1755
2014-03-31	1796
2014-06-30	1689
2014-09-30	1793
2014-12-31	1583
2015-03-31	1440
2015-06-30	1199
2015-09-30	1259
2015-12-31	1120
2016-03-31	1150
2016-06-30	1057
2016-09-30	837
2016-12-31	768
2017-03-31	988
2017-06-30	1004
2017-09-30	1279
2017-12-31	1339
2018-03-31	1558
2018-06-30	1157
2018-09-30	1210
2018-12-31	1122
2019-03-31	1083
2019-06-30	919
2019-09-30	946
2019-12-31	970
2020-03-31	877
2020-06-30	876
2020-09-30	706
2020-12-31	841
2021-03-31	693
2021-06-30	632
2021-09-30	608
2021-12-31	600
2022-03-31	837
2022-06-30	728
2022-09-30	573
2022-12-31	890
2023-03-31	1020
2023-06-30	717
2023-09-30	996