Quarter	US dollars
2004-12-31	1394
2005-03-31	1735
2005-06-30	1509
2005-09-30	1735
2005-12-31	1682
2006-03-31	1811
2006-06-30	1448
2006-09-30	1487
2006-12-31	1438
2007-03-31	1546
2007-06-30	1575
2007-09-30	1644
2007-12-31	1505
2008-03-31	1725
2008-06-30	3033
2008-09-30	1891
2008-12-31	683
2009-03-31	1036
2009-06-30	501
2009-09-30	828
2009-12-31	1142
2010-03-31	1655
2010-06-30	786
2010-09-30	525
2010-12-31	946
2011-03-31	955
2011-06-30	1272
2011-09-30	999
2011-12-31	1082
2012-03-31	1213
2012-06-30	1859
2012-09-30	1655
2012-12-31	1515
2013-03-31	1524
2013-06-30	1151
2013-09-30	2189
2013-12-31	1902
2014-03-31	1987
2014-06-30	2460
2014-09-30	1744
2014-12-31	1918
2015-03-31	2297
2015-06-30	2374
2015-09-30	2046
2015-12-31	1867
2016-03-31	1636
2016-06-30	1499
2016-09-30	1104
2016-12-31	1591
2017-03-31	1752
2017-06-30	3209
2017-09-30	2430
2017-12-31	2274
2018-03-31	1948
2018-06-30	2487
2018-09-30	2193
2018-12-31	1864
2019-03-31	2073
2019-06-30	1227
2019-09-30	1455
2019-12-31	376
2020-03-31	1715
2020-06-30	968
2020-09-30	1700
2020-12-31	1324
2021-03-31	1182
2021-06-30	1361
2021-09-30	1390
2021-12-31	857
2022-03-31	666
2022-06-30	646
2022-09-30	1373
2022-12-31	789
2023-03-31	795
2023-06-30	1546
2023-09-30	2082