Quarter	US dollars
2004-12-31	130559
2005-03-31	127965
2005-06-30	132172
2005-09-30	153769
2005-12-31	127332
2006-03-31	139149
2006-06-30	130782
2006-09-30	157415
2006-12-31	144875
2007-03-31	168085
2007-06-30	145871
2007-09-30	167456
2007-12-31	159479
2008-03-31	182089
2008-06-30	162209
2008-09-30	148935
2008-12-31	125924
2009-03-31	142149
2009-06-30	126930
2009-09-30	157958
2009-12-31	148847
2010-03-31	123893
2010-06-30	119813
2010-09-30	149072
2010-12-31	131010
2011-03-31	139894
2011-06-30	132407
2011-09-30	157541
2011-12-31	155041
2012-03-31	136041
2012-06-30	142639
2012-09-30	138923
2012-12-31	137958
2013-03-31	127197
2013-06-30	125339
2013-09-30	151325
2013-12-31	137825
2014-03-31	142187
2014-06-30	148340
2014-09-30	136216
2014-12-31	133823
2015-03-31	120213
2015-06-30	108925
2015-09-30	106521
2015-12-31	101052
2016-03-31	106399
2016-06-30	110895
2016-09-30	103333
2016-12-31	95705
2017-03-31	98887
2017-06-30	100737
2017-09-30	91909
2017-12-31	90167
2018-03-31	108534
2018-06-30	140102
2018-09-30	109782
2018-12-31	100327
2019-03-31	92729
2019-06-30	90471
2019-09-30	89789
2019-12-31	91313
2020-03-31	89742
2020-06-30	96159
2020-09-30	97165
2020-12-31	97889
2021-03-31	93247
2021-06-30	88515
2021-09-30	81965
2021-12-31	90431
2022-03-31	91660
2022-06-30	86870
2022-09-30	87839
2022-12-31	87648
2023-03-31	98836
2023-06-30	96326
2023-09-30	98235