Quarter	US dollars
2004-12-31	29
2005-03-31	23
2005-06-30	23
2005-09-30	27
2005-12-31	22
2006-03-31	99
2006-06-30	94
2006-09-30	108
2006-12-31	106
2007-03-31	110
2007-06-30	134
2007-09-30	137
2007-12-31	135
2008-03-31	169
2008-06-30	199
2008-09-30	153
2008-12-31	122
2009-03-31	107
2009-06-30	82
2009-09-30	13
2009-12-31	110
2010-03-31	120
2010-06-30	166
2010-09-30	176
2010-12-31	163
2011-03-31	160
2011-06-30	220
2011-09-30	259
2011-12-31	342
2012-03-31	356
2012-06-30	405
2012-09-30	338
2012-12-31	259
2013-03-31	296
2013-06-30	308
2013-09-30	308
2013-12-31	476
2014-03-31	502
2014-06-30	547
2014-09-30	433
2014-12-31	492
2015-03-31	466
2015-06-30	272
2015-09-30	288
2015-12-31	333
2016-03-31	224
2016-06-30	286
2016-09-30	243
2016-12-31	396
2017-03-31	249
2017-06-30	381
2017-09-30	228
2017-12-31	150
2018-03-31	171
2018-06-30	247
2018-09-30	130
2018-12-31	277
2019-03-31	287
2019-06-30	185
2019-09-30	213
2019-12-31	281
2020-03-31	226
2020-06-30	175
2020-09-30	149
2020-12-31	113
2021-03-31	112
2021-06-30	134
2021-09-30	140
2021-12-31	140
2022-03-31	199
2022-06-30	273
2022-09-30	251
2022-12-31	209
2023-03-31	153
2023-06-30	279
2023-09-30	175