Quarter	US dollars
2004-12-31	182
2005-03-31	208
2005-06-30	177
2005-09-30	221
2005-12-31	232
2006-03-31	210
2006-06-30	272
2006-09-30	318
2006-12-31	278
2007-03-31	298
2007-06-30	337
2007-09-30	522
2007-12-31	442
2008-03-31	590
2008-06-30	569
2008-09-30	435
2008-12-31	594
2009-03-31	427
2009-06-30	413
2009-09-30	357
2009-12-31	367
2010-03-31	410
2010-06-30	575
2010-09-30	438
2010-12-31	415
2011-03-31	393
2011-06-30	395
2011-09-30	397
2011-12-31	376
2012-03-31	433
2012-06-30	453
2012-09-30	368
2012-12-31	390
2013-03-31	478
2013-06-30	490
2013-09-30	403
2013-12-31	388
2014-03-31	382
2014-06-30	171
2014-09-30	188
2014-12-31	133
2015-03-31	135
2015-06-30	148
2015-09-30	127
2015-12-31	110
2016-03-31	62
2016-06-30	83
2016-09-30	104
2016-12-31	71
2017-03-31	90
2017-06-30	738
2017-09-30	691
2017-12-31	639
2018-03-31	615
2018-06-30	716
2018-09-30	720
2018-12-31	724
2019-03-31	652
2019-06-30	732
2019-09-30	715
2019-12-31	575
2020-03-31	549
2020-06-30	635
2020-09-30	659
2020-12-31	547
2021-03-31	629
2021-06-30	645
2021-09-30	698
2021-12-31	575
2022-03-31	536
2022-06-30	609
2022-09-30	534
2022-12-31	500
2023-03-31	312
2023-06-30	359
2023-09-30	289