Quarter	US dollars
2004-12-31	1634
2005-03-31	1803
2005-06-30	1595
2005-09-30	1564
2005-12-31	1941
2006-03-31	1639
2006-06-30	1718
2006-09-30	1672
2006-12-31	1871
2007-03-31	1875
2007-06-30	1848
2007-09-30	1809
2007-12-31	1700
2008-03-31	1819
2008-06-30	1791
2008-09-30	1547
2008-12-31	1360
2009-03-31	1185
2009-06-30	1138
2009-09-30	1032
2009-12-31	1284
2010-03-31	1253
2010-06-30	1269
2010-09-30	1123
2010-12-31	1116
2011-03-31	1231
2011-06-30	997
2011-09-30	929
2011-12-31	945
2012-03-31	1224
2012-06-30	1112
2012-09-30	1132
2012-12-31	846
2013-03-31	836
2013-06-30	690
2013-09-30	662
2013-12-31	633
2014-03-31	709
2014-06-30	901
2014-09-30	687
2014-12-31	585
2015-03-31	561
2015-06-30	672
2015-09-30	647
2015-12-31	637
2016-03-31	743
2016-06-30	737
2016-09-30	677
2016-12-31	798
2017-03-31	668
2017-06-30	655
2017-09-30	810
2017-12-31	996
2018-03-31	1082
2018-06-30	959
2018-09-30	994
2018-12-31	594
2019-03-31	747
2019-06-30	395
2019-09-30	325
2019-12-31	346
2020-03-31	342
2020-06-30	256
2020-09-30	242
2020-12-31	273
2021-03-31	217
2021-06-30	229
2021-09-30	220
2021-12-31	213
2022-03-31	220
2022-06-30	225
2022-09-30	387
2022-12-31	255
2023-03-31	267
2023-06-30	203
2023-09-30	298