Quarter	US dollars
2004-12-31	22006
2005-03-31	13409
2005-06-30	24894
2005-09-30	30109
2005-12-31	22211
2006-03-31	17014
2006-06-30	20157
2006-09-30	35102
2006-12-31	33026
2007-03-31	34956
2007-06-30	17801
2007-09-30	22581
2007-12-31	18169
2008-03-31	17554
2008-06-30	30707
2008-09-30	27373
2008-12-31	26680
2009-03-31	47109
2009-06-30	58422
2009-09-30	59692
2009-12-31	63037
2010-03-31	66193
2010-06-30	71448
2010-09-30	69158
2010-12-31	57203
2011-03-31	69214
2011-06-30	62869
2011-09-30	103156
2011-12-31	78718
2012-03-31	208860
2012-06-30	185851
2012-09-30	176531
2012-12-31	158327
2013-03-31	99446
2013-06-30	91692
2013-09-30	71597
2013-12-31	70497
2014-03-31	68463
2014-06-30	55531
2014-09-30	61020
2014-12-31	69715
2015-03-31	63054
2015-06-30	64546
2015-09-30	68255
2015-12-31	86798
2016-03-31	80031
2016-06-30	89081
2016-09-30	90320
2016-12-31	108135
2017-03-31	117606
2017-06-30	120702
2017-09-30	131886
2017-12-31	119549
2018-03-31	116348
2018-06-30	146775
2018-09-30	134455
2018-12-31	85758
2019-03-31	94851
2019-06-30	93869
2019-09-30	85538
2019-12-31	85526
2020-03-31	86094
2020-06-30	114564
2020-09-30	120311
2020-12-31	133134
2021-03-31	126101
2021-06-30	125009
2021-09-30	115339
2021-12-31	122236
2022-03-31	129332
2022-06-30	128168
2022-09-30	118475
2022-12-31	133340
2023-03-31	132811
2023-06-30	130111
2023-09-30	129231