Quarter	US dollars
2004-12-31	13664
2005-03-31	15751
2005-06-30	13264
2005-09-30	15986
2005-12-31	17847
2006-03-31	28300
2006-06-30	26117
2006-09-30	23887
2006-12-31	31175
2007-03-31	35088
2007-06-30	36585
2007-09-30	33711
2007-12-31	38956
2008-03-31	47155
2008-06-30	38415
2008-09-30	40557
2008-12-31	23082
2009-03-31	24317
2009-06-30	29983
2009-09-30	30491
2009-12-31	26652
2010-03-31	36319
2010-06-30	25844
2010-09-30	27269
2010-12-31	23490
2011-03-31	25794
2011-06-30	27359
2011-09-30	17386
2011-12-31	19897
2012-03-31	25681
2012-06-30	20226
2012-09-30	19783
2012-12-31	23668
2013-03-31	23468
2013-06-30	30731
2013-09-30	43402
2013-12-31	45297
2014-03-31	49085
2014-06-30	51004
2014-09-30	44852
2014-12-31	34210
2015-03-31	36556
2015-06-30	26297
2015-09-30	25308
2015-12-31	20389
2016-03-31	19301
2016-06-30	26313
2016-09-30	25995
2016-12-31	25441
2017-03-31	27464
2017-06-30	39429
2017-09-30	42949
2017-12-31	50446
2018-03-31	45924
2018-06-30	38423
2018-09-30	50643
2018-12-31	59671
2019-03-31	57335
2019-06-30	60849
2019-09-30	51850
2019-12-31	51075
2020-03-31	78825
2020-06-30	66417
2020-09-30	67353
2020-12-31	57978
2021-03-31	72804
2021-06-30	62212
2021-09-30	73255
2021-12-31	81130
2022-03-31	72961
2022-06-30	88952
2022-09-30	89862
2022-12-31	97438
2023-03-31	99938
2023-06-30	101040
2023-09-30	100335