Quarter	US dollars
2004-12-31	19
2005-03-31	45
2005-06-30	47
2005-09-30	50
2005-12-31	34
2006-03-31	40
2006-06-30	48
2006-09-30	34
2006-12-31	94
2007-03-31	106
2007-06-30	50
2007-09-30	77
2007-12-31	151
2008-03-31	157
2008-06-30	103
2008-09-30	75
2008-12-31	105
2009-03-31	112
2009-06-30	59
2009-09-30	80
2009-12-31	97
2010-03-31	250
2010-06-30	114
2010-09-30	145
2010-12-31	174
2011-03-31	131
2011-06-30	136
2011-09-30	209
2011-12-31	360
2012-03-31	185
2012-06-30	162
2012-09-30	61
2012-12-31	37
2013-03-31	121
2013-06-30	208
2013-09-30	18
2013-12-31	28
2014-03-31	178
2014-06-30	190
2014-09-30	71
2014-12-31	30
2015-03-31	79
2015-06-30	90
2015-09-30	77
2015-12-31	90
2016-03-31	98
2016-06-30	91
2016-09-30	105
2016-12-31	82
2017-03-31	75
2017-06-30	139
2017-09-30	153
2017-12-31	157
2018-03-31	375
2018-06-30	367
2018-09-30	339
2018-12-31	577
2019-03-31	177
2019-06-30	177
2019-09-30	97
2019-12-31	78
2020-03-31	139
2020-06-30	116
2020-09-30	35
2020-12-31	31
2021-03-31	91
2021-06-30	129
2021-09-30	120
2021-12-31	88
2022-03-31	50
2022-06-30	16
2022-09-30	47
2022-12-31	28
2023-03-31	23
2023-06-30	12
2023-09-30	18