Quarter	US dollars
2004-12-31	27099
2005-03-31	34178
2005-06-30	26317
2005-09-30	43635
2005-12-31	26204
2006-03-31	32279
2006-06-30	28542
2006-09-30	42294
2006-12-31	32079
2007-03-31	40269
2007-06-30	43029
2007-09-30	43729
2007-12-31	47823
2008-03-31	70815
2008-06-30	65741
2008-09-30	70188
2008-12-31	46143
2009-03-31	44747
2009-06-30	44258
2009-09-30	53485
2009-12-31	58247
2010-03-31	69589
2010-06-30	72670
2010-09-30	79870
2010-12-31	86998
2011-03-31	97930
2011-06-30	107440
2011-09-30	108601
2011-12-31	105054
2012-03-31	110414
2012-06-30	110467
2012-09-30	101556
2012-12-31	102098
2013-03-31	126670
2013-06-30	132402
2013-09-30	131259
2013-12-31	131733
2014-03-31	148298
2014-06-30	139641
2014-09-30	132801
2014-12-31	112192
2015-03-31	109219
2015-06-30	103428
2015-09-30	90652
2015-12-31	82543
2016-03-31	78119
2016-06-30	78006
2016-09-30	79180
2016-12-31	82367
2017-03-31	88997
2017-06-30	116031
2017-09-30	112850
2017-12-31	120992
2018-03-31	121725
2018-06-30	123970
2018-09-30	116624
2018-12-31	110757
2019-03-31	117110
2019-06-30	120121
2019-09-30	113956
2019-12-31	105059
2020-03-31	111099
2020-06-30	105393
2020-09-30	98888
2020-12-31	114123
2021-03-31	130909
2021-06-30	132520
2021-09-30	135797
2021-12-31	145748
2022-03-31	135674
2022-06-30	131636
2022-09-30	135711
2022-12-31	129729
2023-03-31	124532
2023-06-30	122373
2023-09-30	131782