Quarter	US dollars
2004-12-31	239037
2005-03-31	257386
2005-06-30	250321
2005-09-30	262352
2005-12-31	286710
2006-03-31	279175
2006-06-30	293117
2006-09-30	286528
2006-12-31	289088
2007-03-31	308320
2007-06-30	311774
2007-09-30	324038
2007-12-31	287207
2008-03-31	271729
2008-06-30	268323
2008-09-30	254958
2008-12-31	215561
2009-03-31	207732
2009-06-30	195648
2009-09-30	175817
2009-12-31	159700
2010-03-31	65634
2010-06-30	81046
2010-09-30	80971
2010-12-31	94545
2011-03-31	89023
2011-06-30	89837
2011-09-30	96129
2011-12-31	92863
2012-03-31	99269
2012-06-30	82562
2012-09-30	87279
2012-12-31	141261
2013-03-31	146992
2013-06-30	151788
2013-09-30	158058
2013-12-31	153849
2014-03-31	166325
2014-06-30	172085
2014-09-30	176113
2014-12-31	182918
2015-03-31	269080
2015-06-30	270344
2015-09-30	212544
2015-12-31	228679
2016-03-31	219499
2016-06-30	213248
2016-09-30	219235
2016-12-31	223838
2017-03-31	231392
2017-06-30	233167
2017-09-30	238477
2017-12-31	322932
2018-03-31	339479
2018-06-30	335664
2018-09-30	335302
2018-12-31	333649
2019-03-31	366289
2019-06-30	364427
2019-09-30	384193
2019-12-31	381680
2020-03-31	351721
2020-06-30	363276
2020-09-30	377474
2020-12-31	375771
2021-03-31	390007
2021-06-30	403408
2021-09-30	402328
2021-12-31	388647
2022-03-31	405303
2022-06-30	437586
2022-09-30	432181
2022-12-31	427301
2023-03-31	434076
2023-06-30	442708
2023-09-30	450999