Quarter	US dollars
2004-12-31	793
2005-03-31	926
2005-06-30	787
2005-09-30	605
2005-12-31	589
2006-03-31	890
2006-06-30	729
2006-09-30	592
2006-12-31	1082
2007-03-31	604
2007-06-30	664
2007-09-30	707
2007-12-31	1111
2008-03-31	912
2008-06-30	1276
2008-09-30	1370
2008-12-31	819
2009-03-31	969
2009-06-30	1383
2009-09-30	1531
2009-12-31	1087
2010-03-31	1279
2010-06-30	1396
2010-09-30	1913
2010-12-31	1340
2011-03-31	1218
2011-06-30	1456
2011-09-30	1640
2011-12-31	2058
2012-03-31	2044
2012-06-30	1887
2012-09-30	951
2012-12-31	868
2013-03-31	1172
2013-06-30	952
2013-09-30	1265
2013-12-31	1696
2014-03-31	1711
2014-06-30	792
2014-09-30	1200
2014-12-31	791
2015-03-31	1010
2015-06-30	963
2015-09-30	904
2015-12-31	901
2016-03-31	1579
2016-06-30	1235
2016-09-30	1145
2016-12-31	717
2017-03-31	602
2017-06-30	252
2017-09-30	319
2017-12-31	509
2018-03-31	281
2018-06-30	148
2018-09-30	310
2018-12-31	363
2019-03-31	317
2019-06-30	229
2019-09-30	250
2019-12-31	419
2020-03-31	1502
2020-06-30	1277
2020-09-30	657
2020-12-31	550
2021-03-31	226
2021-06-30	164
2021-09-30	661
2021-12-31	792
2022-03-31	526
2022-06-30	371
2022-09-30	389
2022-12-31	316
2023-03-31	289
2023-06-30	521
2023-09-30	585