Quarter	US dollars
2004-12-31	457
2005-03-31	830
2005-06-30	850
2005-09-30	941
2005-12-31	994
2006-03-31	1467
2006-06-30	934
2006-09-30	1009
2006-12-31	787
2007-03-31	792
2007-06-30	823
2007-09-30	941
2007-12-31	1041
2008-03-31	1057
2008-06-30	1564
2008-09-30	1607
2008-12-31	1343
2009-03-31	1188
2009-06-30	820
2009-09-30	801
2009-12-31	833
2010-03-31	960
2010-06-30	1079
2010-09-30	1134
2010-12-31	919
2011-03-31	1076
2011-06-30	1029
2011-09-30	994
2011-12-31	889
2012-03-31	892
2012-06-30	893
2012-09-30	987
2012-12-31	952
2013-03-31	956
2013-06-30	915
2013-09-30	858
2013-12-31	863
2014-03-31	782
2014-06-30	692
2014-09-30	695
2014-12-31	693
2015-03-31	661
2015-06-30	637
2015-09-30	462
2015-12-31	510
2016-03-31	525
2016-06-30	471
2016-09-30	385
2016-12-31	367
2017-03-31	354
2017-06-30	308
2017-09-30	291
2017-12-31	230
2018-03-31	349
2018-06-30	383
2018-09-30	296
2018-12-31	347
2019-03-31	311
2019-06-30	459
2019-09-30	648
2019-12-31	638
2020-03-31	806
2020-06-30	970
2020-09-30	1065
2020-12-31	822
2021-03-31	893
2021-06-30	775
2021-09-30	1176
2021-12-31	1073
2022-03-31	1100
2022-06-30	1037
2022-09-30	1087
2022-12-31	707
2023-03-31	630
2023-06-30	576
2023-09-30	623