Quarter	US dollars
2004-12-31	38
2005-03-31	64
2005-06-30	108
2005-09-30	108
2005-12-31	118
2006-03-31	128
2006-06-30	89
2006-09-30	127
2006-12-31	102
2007-03-31	104
2007-06-30	154
2007-09-30	134
2007-12-31	137
2008-03-31	179
2008-06-30	217
2008-09-30	274
2008-12-31	276
2009-03-31	214
2009-06-30	183
2009-09-30	219
2009-12-31	205
2010-03-31	205
2010-06-30	106
2010-09-30	154
2010-12-31	133
2011-03-31	103
2011-06-30	181
2011-09-30	65
2011-12-31	283
2012-03-31	304
2012-06-30	130
2012-09-30	128
2012-12-31	116
2013-03-31	184
2013-06-30	161
2013-09-30	165
2013-12-31	145
2014-03-31	63
2014-06-30	84
2014-09-30	70
2014-12-31	144
2015-03-31	150
2015-06-30	112
2015-09-30	36
2015-12-31	101
2016-03-31	65
2016-06-30	42
2016-09-30	266
2016-12-31	545
2017-03-31	514
2017-06-30	268
2017-09-30	259
2017-12-31	259
2018-03-31	253
2018-06-30	251
2018-09-30	250
2018-12-31	250
2019-03-31	258
2019-06-30	258
2019-09-30	257
2019-12-31	258
2020-03-31	251
2020-06-30	154
2020-09-30	171
2020-12-31	188
2021-03-31	218
2021-06-30	166
2021-09-30	102
2021-12-31	127
2022-03-31	96
2022-06-30	95
2022-09-30	80
2022-12-31	63
2023-03-31	70
2023-06-30	73
2023-09-30	61