Quarter	US dollars
2004-12-31	486
2005-03-31	1079
2005-06-30	1090
2005-09-30	1098
2005-12-31	1083
2006-03-31	1100
2006-06-30	1087
2006-09-30	1298
2006-12-31	1526
2007-03-31	1675
2007-06-30	1806
2007-09-30	1858
2007-12-31	2196
2008-03-31	3228
2008-06-30	2734
2008-09-30	2203
2008-12-31	1892
2009-03-31	1938
2009-06-30	1841
2009-09-30	1972
2009-12-31	2824
2010-03-31	2715
2010-06-30	2485
2010-09-30	1963
2010-12-31	2146
2011-03-31	1956
2011-06-30	1919
2011-09-30	2175
2011-12-31	2267
2012-03-31	1705
2012-06-30	1816
2012-09-30	2064
2012-12-31	1407
2013-03-31	1529
2013-06-30	1288
2013-09-30	1333
2013-12-31	1369
2014-03-31	1837
2014-06-30	1696
2014-09-30	1676
2014-12-31	1963
2015-03-31	1544
2015-06-30	1329
2015-09-30	1206
2015-12-31	1092
2016-03-31	1817
2016-06-30	1865
2016-09-30	1821
2016-12-31	1813
2017-03-31	1854
2017-06-30	1867
2017-09-30	1885
2017-12-31	1801
2018-03-31	1827
2018-06-30	1984
2018-09-30	1950
2018-12-31	1860
2019-03-31	2017
2019-06-30	1904
2019-09-30	1672
2019-12-31	1731
2020-03-31	1514
2020-06-30	1776
2020-09-30	1718
2020-12-31	1738
2021-03-31	1461
2021-06-30	2771
2021-09-30	1462
2021-12-31	1578
2022-03-31	1520
2022-06-30	1777
2022-09-30	2145
2022-12-31	1618
2023-03-31	1634
2023-06-30	1621
2023-09-30	1583