Quarter	US dollars
2004-12-31	246
2005-03-31	372
2005-06-30	296
2005-09-30	1498
2005-12-31	1408
2006-03-31	2231
2006-06-30	2371
2006-09-30	331
2006-12-31	380
2007-03-31	420
2007-06-30	474
2007-09-30	1538
2007-12-31	1075
2008-03-31	221
2008-06-30	2438
2008-09-30	2057
2008-12-31	2690
2009-03-31	4918
2009-06-30	4010
2009-09-30	3894
2009-12-31	2913
2010-03-31	745
2010-06-30	964
2010-09-30	1692
2010-12-31	1389
2011-03-31	1775
2011-06-30	1805
2011-09-30	1703
2011-12-31	1568
2012-03-31	2260
2012-06-30	2254
2012-09-30	2521
2012-12-31	2556
2013-03-31	953
2013-06-30	1285
2013-09-30	1543
2013-12-31	2509
2014-03-31	2456
2014-06-30	1915
2014-09-30	1312
2014-12-31	1815
2015-03-31	4031
2015-06-30	4130
2015-09-30	2820
2015-12-31	3881
2016-03-31	2656
2016-06-30	2933
2016-09-30	2948
2016-12-31	2341
2017-03-31	1887
2017-06-30	1648
2017-09-30	1626
2017-12-31	1442
2018-03-31	1419
2018-06-30	820
2018-09-30	2110
2018-12-31	1800
2019-03-31	1096
2019-06-30	1616
2019-09-30	1690
2019-12-31	1530
2020-03-31	1371
2020-06-30	1052
2020-09-30	1210
2020-12-31	957
2021-03-31	1054
2021-06-30	1158
2021-09-30	1075
2021-12-31	1445
2022-03-31	1641
2022-06-30	1979
2022-09-30	1546
2022-12-31	2094
2023-03-31	1568
2023-06-30	1284
2023-09-30	1217