Quarter	US dollars
2004-12-31	35067
2005-03-31	34625
2005-06-30	36563
2005-09-30	39538
2005-12-31	40987
2006-03-31	43883
2006-06-30	47459
2006-09-30	49134
2006-12-31	48851
2007-03-31	53020
2007-06-30	56819
2007-09-30	61807
2007-12-31	62618
2008-03-31	64669
2008-06-30	64489
2008-09-30	61875
2008-12-31	48641
2009-03-31	48062
2009-06-30	50552
2009-09-30	53300
2009-12-31	51105
2010-03-31	55422
2010-06-30	53144
2010-09-30	51784
2010-12-31	54096
2011-03-31	59252
2011-06-30	61912
2011-09-30	56718
2011-12-31	56204
2012-03-31	61816
2012-06-30	60371
2012-09-30	62141
2012-12-31	61330
2013-03-31	60153
2013-06-30	60836
2013-09-30	63777
2013-12-31	63000
2014-03-31	62499
2014-06-30	61312
2014-09-30	56554
2014-12-31	61016
2015-03-31	57949
2015-06-30	62946
2015-09-30	52230
2015-12-31	52966
2016-03-31	52997
2016-06-30	52585
2016-09-30	54331
2016-12-31	52353
2017-03-31	54792
2017-06-30	55252
2017-09-30	55112
2017-12-31	60160
2018-03-31	62603
2018-06-30	61959
2018-09-30	63621
2018-12-31	59255
2019-03-31	58741
2019-06-30	59955
2019-09-30	60373
2019-12-31	59396
2020-03-31	61313
2020-06-30	64560
2020-09-30	62504
2020-12-31	65148
2021-03-31	65974
2021-06-30	76648
2021-09-30	79111
2021-12-31	81095
2022-03-31	80669
2022-06-30	78761
2022-09-30	79664
2022-12-31	77661
2023-03-31	73891
2023-06-30	74050
2023-09-30	71164