Quarter	US dollars
2004-12-31	12166
2005-03-31	18849
2005-06-30	10751
2005-09-30	17865
2005-12-31	20426
2006-03-31	22217
2006-06-30	30663
2006-09-30	33004
2006-12-31	26872
2007-03-31	36286
2007-06-30	21717
2007-09-30	21851
2007-12-31	12724
2008-03-31	31206
2008-06-30	24146
2008-09-30	28621
2008-12-31	25996
2009-03-31	35792
2009-06-30	42858
2009-09-30	39519
2009-12-31	38440
2010-03-31	48551
2010-06-30	45508
2010-09-30	39926
2010-12-31	44665
2011-03-31	45200
2011-06-30	56196
2011-09-30	40853
2011-12-31	112165
2012-03-31	48058
2012-06-30	55701
2012-09-30	31058
2012-12-31	35832
2013-03-31	30738
2013-06-30	26820
2013-09-30	32984
2013-12-31	34264
2014-03-31	30353
2014-06-30	26617
2014-09-30	29906
2014-12-31	27258
2015-03-31	37691
2015-06-30	40060
2015-09-30	37922
2015-12-31	33489
2016-03-31	38359
2016-06-30	29689
2016-09-30	26746
2016-12-31	25974
2017-03-31	38971
2017-06-30	43848
2017-09-30	47651
2017-12-31	66780
2018-03-31	42232
2018-06-30	29010
2018-09-30	56444
2018-12-31	89103
2019-03-31	77514
2019-06-30	88048
2019-09-30	65563
2019-12-31	74148
2020-03-31	96851
2020-06-30	99639
2020-09-30	103046
2020-12-31	118469
2021-03-31	152385
2021-06-30	150488
2021-09-30	120996
2021-12-31	128046
2022-03-31	148363
2022-06-30	165455
2022-09-30	157640
2022-12-31	158433
2023-03-31	150383
2023-06-30	151470
2023-09-30	154112