Quarter	US dollars
2004-12-31	127
2005-03-31	535
2005-06-30	109
2005-09-30	48
2005-12-31	113
2006-03-31	146
2006-06-30	146
2006-09-30	271
2006-12-31	221
2007-03-31	1363
2007-06-30	564
2007-09-30	448
2007-12-31	474
2008-03-31	562
2008-06-30	1075
2008-09-30	1433
2008-12-31	651
2009-03-31	679
2009-06-30	861
2009-09-30	857
2009-12-31	772
2010-03-31	863
2010-06-30	974
2010-09-30	781
2010-12-31	935
2011-03-31	686
2011-06-30	772
2011-09-30	943
2011-12-31	509
2012-03-31	519
2012-06-30	627
2012-09-30	835
2012-12-31	760
2013-03-31	761
2013-06-30	737
2013-09-30	1192
2013-12-31	1134
2014-03-31	1072
2014-06-30	1098
2014-09-30	948
2014-12-31	949
2015-03-31	858
2015-06-30	876
2015-09-30	756
2015-12-31	891
2016-03-31	700
2016-06-30	622
2016-09-30	598
2016-12-31	573
2017-03-31	932
2017-06-30	751
2017-09-30	946
2017-12-31	300
2018-03-31	223
2018-06-30	1225
2018-09-30	318
2018-12-31	286
2019-03-31	1065
2019-06-30	216
2019-09-30	147
2019-12-31	156
2020-03-31	107
2020-06-30	69
2020-09-30	332
2020-12-31	378
2021-03-31	377
2021-06-30	352
2021-09-30	1006
2021-12-31	256
2022-03-31	208
2022-06-30	108
2022-09-30	100
2022-12-31	77
2023-03-31	76
2023-06-30	130
2023-09-30	196