Quarter	US dollars
2004-12-31	4
2005-03-31	53
2005-06-30	2
2005-09-30	44
2005-12-31	2
2006-03-31	2
2006-06-30	9
2006-09-30	15
2006-12-31	10
2007-03-31	29
2007-06-30	14
2007-09-30	14
2007-12-31	133
2008-03-31	14
2008-06-30	16
2008-09-30	18
2008-12-31	66
2009-03-31	3
2009-06-30	10
2009-09-30	13
2009-12-31	21
2010-03-31	35
2010-06-30	57
2010-09-30	33
2010-12-31	50
2011-03-31	6
2011-06-30	18
2011-09-30	12
2011-12-31	9
2012-03-31	16
2012-06-30	25
2012-09-30	32
2012-12-31	26
2013-03-31	41
2013-06-30	138
2013-09-30	19
2013-12-31	17
2014-03-31	20
2014-06-30	19
2014-09-30	15
2014-12-31	28
2015-03-31	74
2015-06-30	22
2015-09-30	24
2015-12-31	50
2016-03-31	29
2016-06-30	20
2016-09-30	22
2016-12-31	148
2017-03-31	153
2017-06-30	197
2017-09-30	114
2017-12-31	31
2018-03-31	307
2018-06-30	184
2018-09-30	82
2018-12-31	121
2019-03-31	206
2019-06-30	117
2019-09-30	11
2019-12-31	54
2020-03-31	112
2020-06-30	159
2020-09-30	1
2020-12-31	205
2021-03-31	218
2021-06-30	0
2021-09-30	220
2021-12-31	233
2022-03-31	225
2022-06-30	120
2022-09-30	205
2022-12-31	246
2023-03-31	221
2023-06-30	169
2023-09-30	60