Quarter	US dollars
2004-12-31	545
2005-03-31	565
2005-06-30	522
2005-09-30	571
2005-12-31	654
2006-03-31	730
2006-06-30	830
2006-09-30	531
2006-12-31	845
2007-03-31	753
2007-06-30	975
2007-09-30	982
2007-12-31	1075
2008-03-31	1002
2008-06-30	884
2008-09-30	1141
2008-12-31	1088
2009-03-31	957
2009-06-30	1056
2009-09-30	1359
2009-12-31	1831
2010-03-31	1600
2010-06-30	1429
2010-09-30	1610
2010-12-31	805
2011-03-31	2438
2011-06-30	2937
2011-09-30	3041
2011-12-31	3340
2012-03-31	3736
2012-06-30	4177
2012-09-30	3582
2012-12-31	3777
2013-03-31	2851
2013-06-30	2217
2013-09-30	2508
2013-12-31	2787
2014-03-31	2144
2014-06-30	2236
2014-09-30	2417
2014-12-31	2037
2015-03-31	1562
2015-06-30	1642
2015-09-30	1275
2015-12-31	1217
2016-03-31	1383
2016-06-30	1593
2016-09-30	1438
2016-12-31	1480
2017-03-31	1461
2017-06-30	1326
2017-09-30	1622
2017-12-31	1767
2018-03-31	1363
2018-06-30	1493
2018-09-30	1461
2018-12-31	1623
2019-03-31	1609
2019-06-30	1998
2019-09-30	1918
2019-12-31	1894
2020-03-31	1824
2020-06-30	1327
2020-09-30	1260
2020-12-31	711
2021-03-31	381
2021-06-30	453
2021-09-30	748
2021-12-31	656
2022-03-31	761
2022-06-30	1269
2022-09-30	1446
2022-12-31	1566
2023-03-31	1386
2023-06-30	1503
2023-09-30	1367