Quarter	US dollars
2004-12-31	134
2005-03-31	136
2005-06-30	134
2005-09-30	149
2005-12-31	149
2006-03-31	146
2006-06-30	189
2006-09-30	224
2006-12-31	219
2007-03-31	235
2007-06-30	271
2007-09-30	285
2007-12-31	303
2008-03-31	388
2008-06-30	404
2008-09-30	381
2008-12-31	325
2009-03-31	335
2009-06-30	351
2009-09-30	365
2009-12-31	354
2010-03-31	294
2010-06-30	275
2010-09-30	279
2010-12-31	279
2011-03-31	252
2011-06-30	283
2011-09-30	280
2011-12-31	295
2012-03-31	328
2012-06-30	326
2012-09-30	396
2012-12-31	432
2013-03-31	367
2013-06-30	382
2013-09-30	455
2013-12-31	385
2014-03-31	397
2014-06-30	410
2014-09-30	368
2014-12-31	386
2015-03-31	327
2015-06-30	384
2015-09-30	332
2015-12-31	299
2016-03-31	250
2016-06-30	234
2016-09-30	207
2016-12-31	189
2017-03-31	208
2017-06-30	58
2017-09-30	59
2017-12-31	68
2018-03-31	52
2018-06-30	37
2018-09-30	42
2018-12-31	32
2019-03-31	30
2019-06-30	27
2019-09-30	44
2019-12-31	73
2020-03-31	72
2020-06-30	53
2020-09-30	45
2020-12-31	42
2021-03-31	61
2021-06-30	57
2021-09-30	58
2021-12-31	49
2022-03-31	38
2022-06-30	21
2022-09-30	19
2022-12-31	18
2023-03-31	19
2023-06-30	17
2023-09-30	26