Quarter	US dollars
2004-12-31	3183
2005-03-31	3004
2005-06-30	5861
2005-09-30	4958
2005-12-31	1497
2006-03-31	2158
2006-06-30	2929
2006-09-30	1397
2006-12-31	775
2007-03-31	865
2007-06-30	492
2007-09-30	654
2007-12-31	1804
2008-03-31	1411
2008-06-30	2139
2008-09-30	818
2008-12-31	664
2009-03-31	311
2009-06-30	366
2009-09-30	678
2009-12-31	1581
2010-03-31	1056
2010-06-30	1354
2010-09-30	1353
2010-12-31	1503
2011-03-31	2554
2011-06-30	981
2011-09-30	3599
2011-12-31	1670
2012-03-31	5047
2012-06-30	5481
2012-09-30	4888
2012-12-31	3303
2013-03-31	1413
2013-06-30	1327
2013-09-30	1725
2013-12-31	2011
2014-03-31	1849
2014-06-30	1588
2014-09-30	1232
2014-12-31	1121
2015-03-31	1915
2015-06-30	2996
2015-09-30	2520
2015-12-31	2721
2016-03-31	2106
2016-06-30	2893
2016-09-30	3604
2016-12-31	2710
2017-03-31	3012
2017-06-30	3458
2017-09-30	2964
2017-12-31	3121
2018-03-31	3149
2018-06-30	3202
2018-09-30	2681
2018-12-31	3113
2019-03-31	1544
2019-06-30	2815
2019-09-30	2235
2019-12-31	2269
2020-03-31	3935
2020-06-30	1427
2020-09-30	1504
2020-12-31	1777
2021-03-31	2827
2021-06-30	623
2021-09-30	1001
2021-12-31	999
2022-03-31	1037
2022-06-30	1245
2022-09-30	1443
2022-12-31	2131
2023-03-31	2285
2023-06-30	2175
2023-09-30	2458