Quarter	US dollars
2004-12-31	12289
2005-03-31	12605
2005-06-30	14806
2005-09-30	14658
2005-12-31	14007
2006-03-31	18580
2006-06-30	29004
2006-09-30	27014
2006-12-31	27717
2007-03-31	31597
2007-06-30	43597
2007-09-30	48056
2007-12-31	71133
2008-03-31	79609
2008-06-30	72464
2008-09-30	71131
2008-12-31	99938
2009-03-31	68226
2009-06-30	40959
2009-09-30	41260
2009-12-31	31416
2010-03-31	32773
2010-06-30	43689
2010-09-30	31406
2010-12-31	33043
2011-03-31	21121
2011-06-30	25179
2011-09-30	35674
2011-12-31	25322
2012-03-31	22735
2012-06-30	23247
2012-09-30	20438
2012-12-31	16693
2013-03-31	17567
2013-06-30	17386
2013-09-30	19507
2013-12-31	15011
2014-03-31	16786
2014-06-30	18759
2014-09-30	19161
2014-12-31	22032
2015-03-31	21880
2015-06-30	18165
2015-09-30	21874
2015-12-31	17020
2016-03-31	18253
2016-06-30	18239
2016-09-30	15142
2016-12-31	17057
2017-03-31	12865
2017-06-30	12125
2017-09-30	10954
2017-12-31	16696
2018-03-31	15919
2018-06-30	8669
2018-09-30	10977
2018-12-31	9620
2019-03-31	8974
2019-06-30	10676
2019-09-30	13786
2019-12-31	11336
2020-03-31	22391
2020-06-30	13680
2020-09-30	12667
2020-12-31	17285
2021-03-31	14787
2021-06-30	14818
2021-09-30	13774
2021-12-31	13069
2022-03-31	15926
2022-06-30	21361
2022-09-30	25389
2022-12-31	18843
2023-03-31	14243
2023-06-30	16261
2023-09-30	16229