Quarter	US dollars
2004-12-31	13
2005-03-31	11
2005-06-30	45
2005-09-30	44
2005-12-31	43
2006-03-31	40
2006-06-30	39
2006-09-30	37
2006-12-31	43
2007-03-31	31
2007-06-30	42
2007-09-30	49
2007-12-31	48
2008-03-31	143
2008-06-30	203
2008-09-30	192
2008-12-31	193
2009-03-31	169
2009-06-30	142
2009-09-30	136
2009-12-31	137
2010-03-31	137
2010-06-30	135
2010-09-30	176
2010-12-31	178
2011-03-31	117
2011-06-30	116
2011-09-30	111
2011-12-31	141
2012-03-31	216
2012-06-30	226
2012-09-30	220
2012-12-31	278
2013-03-31	279
2013-06-30	259
2013-09-30	311
2013-12-31	302
2014-03-31	227
2014-06-30	244
2014-09-30	242
2014-12-31	250
2015-03-31	258
2015-06-30	271
2015-09-30	277
2015-12-31	264
2016-03-31	226
2016-06-30	228
2016-09-30	248
2016-12-31	244
2017-03-31	281
2017-06-30	287
2017-09-30	288
2017-12-31	243
2018-03-31	255
2018-06-30	257
2018-09-30	224
2018-12-31	230
2019-03-31	142
2019-06-30	149
2019-09-30	136
2019-12-31	145
2020-03-31	140
2020-06-30	146
2020-09-30	146
2020-12-31	158
2021-03-31	159
2021-06-30	126
2021-09-30	116
2021-12-31	119
2022-03-31	76
2022-06-30	78
2022-09-30	36
2022-12-31	47
2023-03-31	49
2023-06-30	50
2023-09-30	61