Quarter	US dollars
2004-12-31	123
2005-03-31	125
2005-06-30	124
2005-09-30	134
2005-12-31	129
2006-03-31	109
2006-06-30	159
2006-09-30	187
2006-12-31	202
2007-03-31	186
2007-06-30	203
2007-09-30	194
2007-12-31	217
2008-03-31	390
2008-06-30	374
2008-09-30	337
2008-12-31	254
2009-03-31	249
2009-06-30	280
2009-09-30	312
2009-12-31	294
2010-03-31	287
2010-06-30	248
2010-09-30	257
2010-12-31	290
2011-03-31	292
2011-06-30	305
2011-09-30	296
2011-12-31	224
2012-03-31	270
2012-06-30	226
2012-09-30	255
2012-12-31	249
2013-03-31	267
2013-06-30	249
2013-09-30	245
2013-12-31	250
2014-03-31	248
2014-06-30	287
2014-09-30	261
2014-12-31	258
2015-03-31	226
2015-06-30	329
2015-09-30	247
2015-12-31	233
2016-03-31	226
2016-06-30	230
2016-09-30	248
2016-12-31	246
2017-03-31	249
2017-06-30	23
2017-09-30	23
2017-12-31	26
2018-03-31	17
2018-06-30	12
2018-09-30	10
2018-12-31	10
2019-03-31	8
2019-06-30	8
2019-09-30	11
2019-12-31	17
2020-03-31	16
2020-06-30	16
2020-09-30	16
2020-12-31	10
2021-03-31	21
2021-06-30	19
2021-09-30	18
2021-12-31	18
2022-03-31	16
2022-06-30	15
2022-09-30	15
2022-12-31	15
2023-03-31	14
2023-06-30	14
2023-09-30	14