Quarter	US dollars
2004-12-31	789
2005-03-31	371
2005-06-30	531
2005-09-30	462
2005-12-31	469
2006-03-31	826
2006-06-30	525
2006-09-30	501
2006-12-31	599
2007-03-31	616
2007-06-30	797
2007-09-30	573
2007-12-31	623
2008-03-31	690
2008-06-30	603
2008-09-30	793
2008-12-31	598
2009-03-31	729
2009-06-30	981
2009-09-30	931
2009-12-31	893
2010-03-31	1089
2010-06-30	1052
2010-09-30	1379
2010-12-31	2453
2011-03-31	2307
2011-06-30	2347
2011-09-30	1835
2011-12-31	1090
2012-03-31	1088
2012-06-30	1584
2012-09-30	1248
2012-12-31	1363
2013-03-31	1199
2013-06-30	1115
2013-09-30	1344
2013-12-31	2011
2014-03-31	1057
2014-06-30	1286
2014-09-30	1047
2014-12-31	965
2015-03-31	834
2015-06-30	753
2015-09-30	754
2015-12-31	846
2016-03-31	1057
2016-06-30	816
2016-09-30	1986
2016-12-31	2696
2017-03-31	2324
2017-06-30	1316
2017-09-30	1342
2017-12-31	1773
2018-03-31	2989
2018-06-30	2639
2018-09-30	2384
2018-12-31	1942
2019-03-31	1519
2019-06-30	1350
2019-09-30	1420
2019-12-31	2440
2020-03-31	2751
2020-06-30	2651
2020-09-30	1865
2020-12-31	1854
2021-03-31	1611
2021-06-30	1622
2021-09-30	1723
2021-12-31	1943
2022-03-31	2245
2022-06-30	1682
2022-09-30	1568
2022-12-31	1659
2023-03-31	2518
2023-06-30	2778
2023-09-30	2467