Quarter	US dollars
2004-12-31	125
2005-03-31	129
2005-06-30	172
2005-09-30	184
2005-12-31	165
2006-03-31	227
2006-06-30	375
2006-09-30	411
2006-12-31	1697
2007-03-31	210
2007-06-30	520
2007-09-30	216
2007-12-31	334
2008-03-31	284
2008-06-30	464
2008-09-30	620
2008-12-31	513
2009-03-31	185
2009-06-30	128
2009-09-30	162
2009-12-31	142
2010-03-31	188
2010-06-30	277
2010-09-30	600
2010-12-31	451
2011-03-31	483
2011-06-30	679
2011-09-30	687
2011-12-31	860
2012-03-31	690
2012-06-30	472
2012-09-30	271
2012-12-31	475
2013-03-31	504
2013-06-30	482
2013-09-30	377
2013-12-31	370
2014-03-31	415
2014-06-30	415
2014-09-30	488
2014-12-31	745
2015-03-31	621
2015-06-30	384
2015-09-30	391
2015-12-31	541
2016-03-31	497
2016-06-30	411
2016-09-30	442
2016-12-31	439
2017-03-31	378
2017-06-30	183
2017-09-30	296
2017-12-31	358
2018-03-31	526
2018-06-30	441
2018-09-30	520
2018-12-31	508
2019-03-31	198
2019-06-30	239
2019-09-30	192
2019-12-31	173
2020-03-31	217
2020-06-30	240
2020-09-30	195
2020-12-31	172
2021-03-31	163
2021-06-30	122
2021-09-30	144
2021-12-31	265
2022-03-31	250
2022-06-30	242
2022-09-30	458
2022-12-31	707
2023-03-31	491
2023-06-30	321
2023-09-30	258