Quarter	US dollars
2004-12-31	213122
2005-03-31	248264
2005-06-30	249468
2005-09-30	294702
2005-12-31	269698
2006-03-31	295994
2006-06-30	333595
2006-09-30	346009
2006-12-31	323150
2007-03-31	366391
2007-06-30	312902
2007-09-30	380980
2007-12-31	386541
2008-03-31	410347
2008-06-30	414930
2008-09-30	461995
2008-12-31	467911
2009-03-31	537682
2009-06-30	599542
2009-09-30	665069
2009-12-31	699925
2010-03-31	803592
2010-06-30	862968
2010-09-30	918266
2010-12-31	857990
2011-03-31	956321
2011-06-30	970017
2011-09-30	1056826
2011-12-31	1104188
2012-03-31	1216360
2012-06-30	1176339
2012-09-30	1140076
2012-12-31	1175611
2013-03-31	1035586
2013-06-30	1029422
2013-09-30	1014708
2013-12-31	962158
2014-03-31	986882
2014-06-30	905763
2014-09-30	927064
2014-12-31	948959
2015-03-31	922259
2015-06-30	948270
2015-09-30	969531
2015-12-31	920656
2016-03-31	964268
2016-06-30	1010445
2016-09-30	985486
2016-12-31	903547
2017-03-31	926202
2017-06-30	1006313
2017-09-30	1063845
2017-12-31	1066073
2018-03-31	1107571
2018-06-30	1064827
2018-09-30	1081671
2018-12-31	1076987
2019-03-31	1096723
2019-06-30	1116122
2019-09-30	1082673
2019-12-31	1103940
2020-03-31	1152463
2020-06-30	1242984
2020-09-30	1268478
2020-12-31	1352642
2021-03-31	1394031
2021-06-30	1369634
2021-09-30	1360528
2021-12-31	1366354
2022-03-31	1374941
2022-06-30	1331450
2022-09-30	1256079
2022-12-31	1328321
2023-03-31	1386189
2023-06-30	1438572
2023-09-30	1429946