Quarter	US dollars
2004-12-31	1267
2005-03-31	1199
2005-06-30	1199
2005-09-30	1245
2005-12-31	1291
2006-03-31	1473
2006-06-30	1282
2006-09-30	635
2006-12-31	562
2007-03-31	581
2007-06-30	590
2007-09-30	538
2007-12-31	671
2008-03-31	2631
2008-06-30	2589
2008-09-30	2374
2008-12-31	2093
2009-03-31	2227
2009-06-30	1960
2009-09-30	2143
2009-12-31	2043
2010-03-31	2010
2010-06-30	1935
2010-09-30	1892
2010-12-31	1789
2011-03-31	1847
2011-06-30	1577
2011-09-30	1528
2011-12-31	2062
2012-03-31	1795
2012-06-30	1870
2012-09-30	1899
2012-12-31	1778
2013-03-31	2115
2013-06-30	2078
2013-09-30	1921
2013-12-31	2334
2014-03-31	2132
2014-06-30	2166
2014-09-30	2318
2014-12-31	2522
2015-03-31	2466
2015-06-30	2062
2015-09-30	1974
2015-12-31	2054
2016-03-31	2243
2016-06-30	2488
2016-09-30	2331
2016-12-31	3536
2017-03-31	3334
2017-06-30	1803
2017-09-30	1842
2017-12-31	1945
2018-03-31	1892
2018-06-30	1670
2018-09-30	1672
2018-12-31	1767
2019-03-31	1762
2019-06-30	1726
2019-09-30	1664
2019-12-31	1756
2020-03-31	1583
2020-06-30	1698
2020-09-30	1674
2020-12-31	1612
2021-03-31	1571
2021-06-30	2036
2021-09-30	2148
2021-12-31	1667
2022-03-31	1585
2022-06-30	1551
2022-09-30	1631
2022-12-31	1577
2023-03-31	1477
2023-06-30	1447
2023-09-30	1342