Quarter	US dollars
2004-12-31	995
2005-03-31	1102
2005-06-30	1072
2005-09-30	256
2005-12-31	912
2006-03-31	704
2006-06-30	843
2006-09-30	869
2006-12-31	1057
2007-03-31	1181
2007-06-30	1210
2007-09-30	1257
2007-12-31	1169
2008-03-31	1928
2008-06-30	1457
2008-09-30	440
2008-12-31	690
2009-03-31	664
2009-06-30	774
2009-09-30	928
2009-12-31	1142
2010-03-31	1254
2010-06-30	1923
2010-09-30	1744
2010-12-31	1627
2011-03-31	1967
2011-06-30	1988
2011-09-30	1100
2011-12-31	1276
2012-03-31	1107
2012-06-30	935
2012-09-30	1061
2012-12-31	998
2013-03-31	967
2013-06-30	907
2013-09-30	996
2013-12-31	1007
2014-03-31	1157
2014-06-30	732
2014-09-30	838
2014-12-31	1100
2015-03-31	959
2015-06-30	1483
2015-09-30	1596
2015-12-31	1572
2016-03-31	1474
2016-06-30	863
2016-09-30	881
2016-12-31	833
2017-03-31	740
2017-06-30	773
2017-09-30	770
2017-12-31	847
2018-03-31	905
2018-06-30	809
2018-09-30	1219
2018-12-31	1369
2019-03-31	692
2019-06-30	825
2019-09-30	754
2019-12-31	746
2020-03-31	1113
2020-06-30	901
2020-09-30	358
2020-12-31	371
2021-03-31	353
2021-06-30	600
2021-09-30	531
2021-12-31	567
2022-03-31	-316
2022-06-30	484
2022-09-30	464
2022-12-31	650
2023-03-31	587
2023-06-30	456
2023-09-30	561