Quarter	US dollars
2004-12-31	1150
2005-03-31	431
2005-06-30	410
2005-09-30	1155
2005-12-31	1188
2006-03-31	1311
2006-06-30	1173
2006-09-30	506
2006-12-31	446
2007-03-31	455
2007-06-30	488
2007-09-30	446
2007-12-31	581
2008-03-31	2556
2008-06-30	2513
2008-09-30	2306
2008-12-31	2028
2009-03-31	2145
2009-06-30	1867
2009-09-30	2054
2009-12-31	1975
2010-03-31	1957
2010-06-30	1864
2010-09-30	1818
2010-12-31	1733
2011-03-31	1829
2011-06-30	1572
2011-09-30	1485
2011-12-31	2028
2012-03-31	1756
2012-06-30	1843
2012-09-30	1909
2012-12-31	1777
2013-03-31	2101
2013-06-30	2081
2013-09-30	1864
2013-12-31	2249
2014-03-31	1999
2014-06-30	2024
2014-09-30	2292
2014-12-31	2394
2015-03-31	2291
2015-06-30	1847
2015-09-30	1745
2015-12-31	1876
2016-03-31	1937
2016-06-30	2345
2016-09-30	2202
2016-12-31	3392
2017-03-31	3196
2017-06-30	1577
2017-09-30	1743
2017-12-31	1741
2018-03-31	1855
2018-06-30	1635
2018-09-30	1656
2018-12-31	1770
2019-03-31	1772
2019-06-30	1742
2019-09-30	1648
2019-12-31	1740
2020-03-31	1529
2020-06-30	1652
2020-09-30	1628
2020-12-31	1571
2021-03-31	1530
2021-06-30	2012
2021-09-30	1989
2021-12-31	1623
2022-03-31	1536
2022-06-30	1581
2022-09-30	1611
2022-12-31	1533
2023-03-31	1539
2023-06-30	1447
2023-09-30	1327