Quarter	US dollars
2004-12-31	200
2005-03-31	198
2005-06-30	217
2005-09-30	198
2005-12-31	197
2006-03-31	219
2006-06-30	239
2006-09-30	207
2006-12-31	157
2007-03-31	155
2007-06-30	161
2007-09-30	194
2007-12-31	223
2008-03-31	266
2008-06-30	239
2008-09-30	324
2008-12-31	302
2009-03-31	312
2009-06-30	280
2009-09-30	382
2009-12-31	308
2010-03-31	406
2010-06-30	229
2010-09-30	383
2010-12-31	470
2011-03-31	705
2011-06-30	615
2011-09-30	698
2011-12-31	682
2012-03-31	654
2012-06-30	590
2012-09-30	828
2012-12-31	818
2013-03-31	753
2013-06-30	849
2013-09-30	1046
2013-12-31	960
2014-03-31	679
2014-06-30	657
2014-09-30	788
2014-12-31	749
2015-03-31	912
2015-06-30	755
2015-09-30	759
2015-12-31	747
2016-03-31	719
2016-06-30	694
2016-09-30	657
2016-12-31	546
2017-03-31	502
2017-06-30	1499
2017-09-30	1445
2017-12-31	1369
2018-03-31	1695
2018-06-30	1642
2018-09-30	1746
2018-12-31	1420
2019-03-31	1564
2019-06-30	1568
2019-09-30	1784
2019-12-31	1472
2020-03-31	1447
2020-06-30	1639
2020-09-30	1626
2020-12-31	1435
2021-03-31	1527
2021-06-30	1736
2021-09-30	1975
2021-12-31	1961
2022-03-31	2243
2022-06-30	2022
2022-09-30	2408
2022-12-31	1965
2023-03-31	2089
2023-06-30	1820
2023-09-30	1588