Quarter	US dollars
2004-12-31	298
2005-03-31	323
2005-06-30	310
2005-09-30	310
2005-12-31	354
2006-03-31	411
2006-06-30	438
2006-09-30	448
2006-12-31	417
2007-03-31	428
2007-06-30	560
2007-09-30	585
2007-12-31	573
2008-03-31	1505
2008-06-30	1711
2008-09-30	1467
2008-12-31	1083
2009-03-31	983
2009-06-30	1128
2009-09-30	1175
2009-12-31	1221
2010-03-31	1289
2010-06-30	1094
2010-09-30	1271
2010-12-31	1644
2011-03-31	1609
2011-06-30	1413
2011-09-30	1260
2011-12-31	1229
2012-03-31	1176
2012-06-30	1293
2012-09-30	1271
2012-12-31	1284
2013-03-31	1368
2013-06-30	1462
2013-09-30	1564
2013-12-31	1648
2014-03-31	1552
2014-06-30	1737
2014-09-30	1824
2014-12-31	1614
2015-03-31	1592
2015-06-30	1502
2015-09-30	1395
2015-12-31	1411
2016-03-31	1373
2016-06-30	1421
2016-09-30	1376
2016-12-31	1481
2017-03-31	1482
2017-06-30	947
2017-09-30	834
2017-12-31	850
2018-03-31	935
2018-06-30	879
2018-09-30	859
2018-12-31	737
2019-03-31	731
2019-06-30	711
2019-09-30	669
2019-12-31	579
2020-03-31	495
2020-06-30	384
2020-09-30	425
2020-12-31	306
2021-03-31	237
2021-06-30	214
2021-09-30	232
2021-12-31	199
2022-03-31	195
2022-06-30	195
2022-09-30	212
2022-12-31	200
2023-03-31	195
2023-06-30	203
2023-09-30	239