Quarter	US dollars
2004-12-31	204861
2005-03-31	211923
2005-06-30	203675
2005-09-30	215886
2005-12-31	214153
2006-03-31	242670
2006-06-30	255485
2006-09-30	266299
2006-12-31	290965
2007-03-31	300455
2007-06-30	368895
2007-09-30	428693
2007-12-31	434940
2008-03-31	492504
2008-06-30	468398
2008-09-30	426970
2008-12-31	425709
2009-03-31	415397
2009-06-30	451620
2009-09-30	439205
2009-12-31	388040
2010-03-31	438891
2010-06-30	454106
2010-09-30	479904
2010-12-31	409123
2011-03-31	442040
2011-06-30	459552
2011-09-30	469917
2011-12-31	475905
2012-03-31	607430
2012-06-30	562720
2012-09-30	516311
2012-12-31	536542
2013-03-31	451210
2013-06-30	447590
2013-09-30	398601
2013-12-31	377060
2014-03-31	365761
2014-06-30	316421
2014-09-30	291866
2014-12-31	269803
2015-03-31	215016
2015-06-30	239638
2015-09-30	246917
2015-12-31	257202
2016-03-31	261869
2016-06-30	297924
2016-09-30	300894
2016-12-31	281439
2017-03-31	315153
2017-06-30	346872
2017-09-30	361349
2017-12-31	375708
2018-03-31	329168
2018-06-30	307656
2018-09-30	342737
2018-12-31	315680
2019-03-31	300610
2019-06-30	288885
2019-09-30	283201
2019-12-31	306741
2020-03-31	299534
2020-06-30	348946
2020-09-30	371663
2020-12-31	399808
2021-03-31	396780
2021-06-30	448338
2021-09-30	413042
2021-12-31	425489
2022-03-31	432019
2022-06-30	416238
2022-09-30	382358
2022-12-31	397335
2023-03-31	398098
2023-06-30	407119
2023-09-30	385740