Quarter	US dollars
2004-12-31	1127
2005-03-31	1217
2005-06-30	1412
2005-09-30	1415
2005-12-31	969
2006-03-31	1124
2006-06-30	1296
2006-09-30	1481
2006-12-31	1544
2007-03-31	265
2007-06-30	295
2007-09-30	324
2007-12-31	346
2008-03-31	316
2008-06-30	406
2008-09-30	797
2008-12-31	404
2009-03-31	330
2009-06-30	300
2009-09-30	285
2009-12-31	328
2010-03-31	369
2010-06-30	1014
2010-09-30	1264
2010-12-31	418
2011-03-31	396
2011-06-30	416
2011-09-30	383
2011-12-31	407
2012-03-31	416
2012-06-30	704
2012-09-30	462
2012-12-31	446
2013-03-31	2573
2013-06-30	332
2013-09-30	379
2013-12-31	331
2014-03-31	750
2014-06-30	275
2014-09-30	303
2014-12-31	339
2015-03-31	324
2015-06-30	255
2015-09-30	482
2015-12-31	400
2016-03-31	394
2016-06-30	379
2016-09-30	365
2016-12-31	335
2017-03-31	385
2017-06-30	374
2017-09-30	390
2017-12-31	367
2018-03-31	286
2018-06-30	294
2018-09-30	245
2018-12-31	262
2019-03-31	197
2019-06-30	215
2019-09-30	208
2019-12-31	210
2020-03-31	211
2020-06-30	172
2020-09-30	172
2020-12-31	160
2021-03-31	146
2021-06-30	116
2021-09-30	117
2021-12-31	113
2022-03-31	104
2022-06-30	97
2022-09-30	93
2022-12-31	103
2023-03-31	87
2023-06-30	65
2023-09-30	70