Quarter	US dollars
2004-12-31	73
2005-03-31	74
2005-06-30	298
2005-09-30	189
2005-12-31	160
2006-03-31	163
2006-06-30	159
2006-09-30	172
2006-12-31	166
2007-03-31	192
2007-06-30	201
2007-09-30	234
2007-12-31	241
2008-03-31	312
2008-06-30	34
2008-09-30	34
2008-12-31	32
2009-03-31	33
2009-06-30	44
2009-09-30	170
2009-12-31	94
2010-03-31	11
2010-06-30	52
2010-09-30	54
2010-12-31	52
2011-03-31	40
2011-06-30	22
2011-09-30	22
2011-12-31	70
2012-03-31	54
2012-06-30	91
2012-09-30	84
2012-12-31	44
2013-03-31	43
2013-06-30	71
2013-09-30	66
2013-12-31	45
2014-03-31	50
2014-06-30	36
2014-09-30	29
2014-12-31	33
2015-03-31	25
2015-06-30	61
2015-09-30	68
2015-12-31	162
2016-03-31	196
2016-06-30	165
2016-09-30	165
2016-12-31	149
2017-03-31	160
2017-06-30	248
2017-09-30	247
2017-12-31	226
2018-03-31	105
2018-06-30	77
2018-09-30	73
2018-12-31	79
2019-03-31	82
2019-06-30	66
2019-09-30	62
2019-12-31	42
2020-03-31	52
2020-06-30	74
2020-09-30	75
2020-12-31	75
2021-03-31	84
2021-06-30	101
2021-09-30	121
2021-12-31	111
2022-03-31	172
2022-06-30	145
2022-09-30	200
2022-12-31	310
2023-03-31	272
2023-06-30	251
2023-09-30	302