Quarter	US dollars
2004-12-31	1688
2005-03-31	1762
2005-06-30	2045
2005-09-30	1866
2006-06-30	1147
2006-09-30	1231
2006-12-31	1421
2007-03-31	1716
2007-06-30	1330
2007-09-30	1432
2007-12-31	1664
2008-03-31	1610
2008-06-30	1574
2008-09-30	1574
2008-12-31	1298
2009-06-30	1451
2009-09-30	1444
2010-03-31	1539
2010-06-30	1613
2010-09-30	1719
2010-12-31	1800
2011-03-31	1928
2011-06-30	2005
2011-09-30	2046
2011-12-31	2152
2012-03-31	2367
2012-06-30	2289
2012-09-30	2590
2012-12-31	2231
2013-09-30	2178
2013-12-31	2312
2014-03-31	2436
2014-06-30	2616
2014-09-30	2664
2014-12-31	2769
2015-03-31	2373
2015-06-30	2561
2015-09-30	1460
2015-12-31	1568
2016-03-31	242
2016-06-30	179
2016-09-30	69
2016-12-31	18
2017-03-31	15
2017-06-30	101
2017-09-30	95
2017-12-31	23
2018-03-31	114
2018-06-30	124
2018-09-30	103
2018-12-31	109
2019-03-31	102
2019-06-30	207
2019-09-30	206
2019-12-31	367
2020-03-31	386
2020-06-30	163
2020-09-30	167
2020-12-31	1
2021-03-31	98
2021-06-30	188
2021-09-30	190
2021-12-31	43
2022-03-31	142
2022-06-30	135
2022-09-30	107
2022-12-31	107
2023-03-31	100
2023-06-30	109
2023-09-30	103