Quarter	US dollars
2004-12-31	17191
2005-03-31	12564
2005-06-30	18380
2005-09-30	16667
2005-12-31	14849
2006-03-31	13583
2006-06-30	17661
2006-09-30	15127
2006-12-31	15488
2007-03-31	16041
2007-06-30	22670
2007-09-30	32132
2007-12-31	38827
2008-03-31	70546
2008-06-30	72302
2008-09-30	75550
2008-12-31	115030
2009-03-31	93816
2009-06-30	51621
2009-09-30	50260
2009-12-31	41520
2010-03-31	40132
2010-06-30	46800
2010-09-30	54041
2010-12-31	49484
2011-03-31	43445
2011-06-30	44011
2011-09-30	67808
2011-12-31	58460
2012-03-31	50740
2012-06-30	45425
2012-09-30	36406
2012-12-31	33327
2013-03-31	28103
2013-06-30	23225
2013-09-30	20521
2013-12-31	18811
2014-03-31	28207
2014-06-30	31388
2014-09-30	39220
2014-12-31	33621
2015-03-31	36034
2015-06-30	27633
2015-09-30	28561
2015-12-31	23653
2016-03-31	27594
2016-06-30	26420
2016-09-30	20504
2016-12-31	17935
2017-03-31	13806
2017-06-30	14273
2017-09-30	14664
2017-12-31	7502
2018-03-31	7873
2018-06-30	5426
2018-09-30	9126
2018-12-31	10238
2019-03-31	11822
2019-06-30	9517
2019-09-30	11822
2019-12-31	13880
2020-03-31	19511
2020-06-30	16784
2020-09-30	16469
2020-12-31	17370
2021-03-31	17048
2021-06-30	12074
2021-09-30	8449
2021-12-31	8135
2022-03-31	8665
2022-06-30	10830
2022-09-30	12538
2022-12-31	11253
2023-03-31	8275
2023-06-30	9067
2023-09-30	10542