Quarter	US dollars
2004-12-31	363
2005-03-31	524
2005-06-30	536
2005-09-30	301
2005-12-31	266
2006-03-31	297
2006-06-30	375
2006-09-30	491
2006-12-31	362
2007-03-31	361
2007-06-30	385
2007-09-30	412
2007-12-31	434
2008-03-31	537
2008-06-30	667
2008-09-30	656
2008-12-31	617
2009-03-31	582
2009-06-30	670
2009-09-30	651
2009-12-31	643
2010-03-31	608
2010-06-30	277
2010-09-30	340
2010-12-31	302
2011-03-31	372
2011-06-30	416
2011-09-30	606
2011-12-31	510
2012-03-31	631
2012-06-30	645
2012-09-30	1281
2012-12-31	1411
2013-03-31	2033
2013-06-30	1946
2013-09-30	1812
2013-12-31	1431
2014-03-31	1429
2014-06-30	1494
2014-09-30	1412
2014-12-31	1480
2015-03-31	1459
2015-06-30	1447
2015-09-30	1366
2015-12-31	1344
2016-03-31	1321
2016-06-30	1264
2016-09-30	1258
2016-12-31	1411
2017-03-31	1507
2017-06-30	1337
2017-09-30	1275
2017-12-31	1235
2018-03-31	1309
2018-06-30	1188
2018-09-30	1195
2018-12-31	1184
2019-03-31	1349
2019-06-30	1166
2019-09-30	1190
2019-12-31	1243
2020-03-31	1323
2020-06-30	1345
2020-09-30	1416
2020-12-31	1323
2021-03-31	1429
2021-06-30	1415
2021-09-30	1374
2021-12-31	1403
2022-03-31	1474
2022-06-30	1403
2022-09-30	1430
2022-12-31	1409
2023-03-31	1439
2023-06-30	1562
2023-09-30	1599