Quarter	US dollars
2004-12-31	19
2005-03-31	36
2005-06-30	38
2005-09-30	37
2005-12-31	46
2006-03-31	50
2006-06-30	52
2006-09-30	30
2006-12-31	22
2007-03-31	22
2007-06-30	22
2007-09-30	24
2007-12-31	22
2008-03-31	119
2008-06-30	6
2008-09-30	9
2008-12-31	26
2009-03-31	21
2009-06-30	25
2009-09-30	24
2009-12-31	82
2010-03-31	83
2010-06-30	115
2010-09-30	161
2010-12-31	222
2011-03-31	224
2011-06-30	263
2011-09-30	151
2011-12-31	152
2012-03-31	251
2012-06-30	248
2012-09-30	313
2012-12-31	369
2013-03-31	370
2013-06-30	226
2013-09-30	338
2013-12-31	340
2014-03-31	333
2014-06-30	255
2014-09-30	248
2014-12-31	353
2015-03-31	278
2015-06-30	266
2015-09-30	253
2015-12-31	207
2016-03-31	161
2016-06-30	161
2016-09-30	155
2016-12-31	193
2017-03-31	153
2017-06-30	275
2017-09-30	322
2017-12-31	58
2018-03-31	119
2018-06-30	99
2018-09-30	141
2018-12-31	92
2019-03-31	168
2019-06-30	87
2019-09-30	67
2019-12-31	70
2020-03-31	185
2020-06-30	252
2020-09-30	256
2020-12-31	258
2021-03-31	115
2021-06-30	104
2021-09-30	102
2021-12-31	31
2022-03-31	32
2022-06-30	29
2022-09-30	237
2022-12-31	206
2023-03-31	204
2023-06-30	178
2023-09-30	158