Quarter	US dollars
2004-12-31	63
2005-03-31	72
2005-06-30	66
2005-09-30	65
2005-12-31	58
2006-03-31	88
2006-06-30	100
2006-09-30	92
2006-12-31	94
2007-03-31	186
2007-06-30	267
2007-09-30	338
2007-12-31	358
2008-03-31	483
2008-06-30	1260
2008-09-30	1260
2008-12-31	1209
2009-03-31	1010
2009-06-30	1166
2009-09-30	1188
2009-12-31	1303
2010-03-31	937
2010-06-30	2855
2010-09-30	2891
2010-12-31	2774
2011-03-31	2602
2011-06-30	4176
2011-09-30	2301
2011-12-31	2103
2012-03-31	2857
2012-06-30	2290
2012-09-30	2619
2012-12-31	2692
2013-03-31	2543
2013-06-30	2619
2013-09-30	2479
2013-12-31	2395
2014-03-31	2301
2014-06-30	2459
2014-09-30	2260
2014-12-31	2361
2015-03-31	1828
2015-06-30	2414
2015-09-30	2670
2015-12-31	1744
2016-03-31	1701
2016-06-30	1605
2016-09-30	1498
2016-12-31	1144
2017-03-31	1023
2017-06-30	1156
2017-09-30	1434
2017-12-31	1575
2018-03-31	1534
2018-06-30	1671
2018-09-30	1539
2018-12-31	1228
2019-03-31	1468
2019-06-30	1690
2019-09-30	1496
2019-12-31	1557
2020-03-31	1315
2020-06-30	1489
2020-09-30	1454
2020-12-31	1804
2021-03-31	1609
2021-06-30	1597
2021-09-30	1485
2021-12-31	1377
2022-03-31	1343
2022-06-30	1206
2022-09-30	593
2022-12-31	947
2023-03-31	879
2023-06-30	1107
2023-09-30	745