Quarter	US dollars
2004-12-31	280
2005-03-31	361
2005-06-30	280
2005-09-30	210
2005-12-31	194
2006-03-31	206
2006-06-30	333
2006-09-30	374
2006-12-31	448
2007-03-31	681
2007-06-30	766
2007-09-30	1082
2007-12-31	1402
2008-03-31	1984
2008-06-30	1491
2008-09-30	1319
2008-12-31	871
2009-03-31	598
2009-06-30	879
2009-09-30	932
2009-12-31	904
2010-03-31	1204
2010-06-30	1632
2010-09-30	1167
2010-12-31	1454
2011-03-31	1279
2011-06-30	1679
2011-09-30	1961
2011-12-31	1531
2012-03-31	1849
2012-06-30	1329
2012-09-30	1232
2012-12-31	1300
2013-03-31	1565
2013-06-30	1511
2013-09-30	1645
2013-12-31	1726
2014-03-31	1077
2014-06-30	1332
2014-09-30	1417
2014-12-31	1253
2015-03-31	1455
2015-06-30	1024
2015-09-30	897
2015-12-31	757
2016-03-31	769
2016-06-30	692
2016-09-30	391
2016-12-31	132
2017-03-31	285
2017-06-30	816
2017-09-30	1389
2017-12-31	1277
2018-03-31	1006
2018-06-30	524
2018-09-30	516
2018-12-31	941
2019-03-31	685
2019-06-30	801
2019-09-30	862
2019-12-31	1013
2020-03-31	1106
2020-06-30	933
2020-09-30	959
2020-12-31	1219
2021-03-31	1658
2021-06-30	1712
2021-09-30	1659
2021-12-31	1578
2022-03-31	1177
2022-06-30	1096
2022-09-30	1375
2022-12-31	920
2023-03-31	1018
2023-06-30	1124
2023-09-30	1307