Quarter	US dollars
2004-12-31	722
2005-03-31	715
2005-06-30	1083
2005-09-30	777
2005-12-31	812
2006-03-31	2362
2006-06-30	1959
2006-09-30	1859
2006-12-31	1885
2007-03-31	2208
2007-06-30	1545
2007-09-30	2477
2007-12-31	1788
2008-03-31	2574
2008-06-30	2193
2008-09-30	2135
2008-12-31	1801
2009-03-31	3087
2009-06-30	1691
2009-09-30	2501
2009-12-31	1327
2010-03-31	1306
2010-06-30	1257
2010-09-30	1360
2010-12-31	1814
2011-03-31	2183
2011-06-30	2147
2011-09-30	3652
2011-12-31	1783
2012-03-31	2806
2012-06-30	2328
2012-09-30	2356
2012-12-31	2792
2013-03-31	2116
2013-06-30	2313
2013-09-30	2530
2013-12-31	2405
2014-03-31	3096
2014-06-30	2626
2014-09-30	2445
2014-12-31	1336
2015-03-31	2030
2015-06-30	2419
2015-09-30	2522
2015-12-31	2208
2016-03-31	2516
2016-06-30	2738
2016-09-30	2714
2016-12-31	2039
2017-03-31	2490
2017-06-30	1947
2017-09-30	2507
2017-12-31	2387
2018-03-31	1988
2018-06-30	2379
2018-09-30	2488
2018-12-31	2572
2019-03-31	1931
2019-06-30	3248
2019-09-30	2863
2019-12-31	2881
2020-03-31	2503
2020-06-30	1759
2020-09-30	1787
2020-12-31	2031
2021-03-31	1497
2021-06-30	1454
2021-09-30	1521
2021-12-31	1509
2022-03-31	2223
2022-06-30	1941
2022-09-30	2446
2022-12-31	3135
2023-03-31	3060
2023-06-30	2678
2023-09-30	2684