Quarter	US dollars
2004-12-31	432
2005-03-31	469
2005-06-30	500
2005-09-30	478
2005-12-31	553
2006-03-31	562
2006-06-30	660
2006-09-30	639
2006-12-31	685
2007-03-31	926
2007-06-30	953
2007-09-30	935
2007-12-31	888
2008-03-31	984
2008-06-30	1077
2008-09-30	1351
2008-12-31	684
2009-03-31	942
2009-06-30	978
2009-09-30	1863
2009-12-31	1836
2010-03-31	1332
2010-06-30	1179
2010-09-30	1268
2010-12-31	1274
2011-03-31	1265
2011-06-30	1265
2011-09-30	1154
2011-12-31	1061
2012-03-31	1186
2012-06-30	1198
2012-09-30	1106
2012-12-31	1048
2013-03-31	962
2013-06-30	1204
2013-09-30	1236
2013-12-31	1050
2014-03-31	1229
2014-06-30	479
2014-09-30	470
2014-12-31	401
2015-03-31	334
2015-06-30	329
2015-09-30	332
2015-12-31	339
2016-03-31	220
2016-06-30	261
2016-09-30	243
2016-12-31	343
2017-03-31	494
2017-06-30	520
2017-09-30	507
2017-12-31	521
2018-03-31	504
2018-06-30	475
2018-09-30	483
2018-12-31	414
2019-03-31	494
2019-06-30	588
2019-09-30	514
2019-12-31	563
2020-03-31	461
2020-06-30	449
2020-09-30	417
2020-12-31	414
2021-03-31	432
2021-06-30	554
2021-09-30	458
2021-12-31	511
2022-03-31	537
2022-06-30	492
2022-09-30	452
2022-12-31	456
2023-03-31	444
2023-06-30	387
2023-09-30	124