Quarter	US dollars
2004-12-31	50
2005-03-31	537
2005-06-30	963
2005-09-30	486
2005-12-31	259
2006-03-31	390
2006-06-30	290
2006-09-30	135
2006-12-31	1024
2007-03-31	1028
2007-06-30	1067
2007-09-30	1718
2007-12-31	1903
2008-03-31	1846
2008-06-30	1315
2008-09-30	266
2008-12-31	273
2009-03-31	248
2009-06-30	308
2009-09-30	289
2009-12-31	286
2010-03-31	323
2010-06-30	355
2010-09-30	493
2010-12-31	620
2011-03-31	566
2011-06-30	424
2011-09-30	375
2011-12-31	376
2012-03-31	377
2012-06-30	191
2012-09-30	202
2012-12-31	194
2013-03-31	196
2013-06-30	190
2013-09-30	191
2013-12-31	185
2014-03-31	163
2014-06-30	152
2014-09-30	162
2014-12-31	145
2015-03-31	143
2015-06-30	120
2015-09-30	108
2015-12-31	120
2016-03-31	122
2016-06-30	162
2016-09-30	162
2016-12-31	155
2017-03-31	83
2017-06-30	43
2017-09-30	31
2017-12-31	57
2018-03-31	28
2018-06-30	32
2018-09-30	34
2018-12-31	51
2019-03-31	63
2019-06-30	62
2019-09-30	136
2019-12-31	50
2020-03-31	135
2020-06-30	95
2020-09-30	89
2020-12-31	90
2021-03-31	94
2021-06-30	95
2021-09-30	94
2021-12-31	104
2022-03-31	90
2022-06-30	85
2022-09-30	112
2022-12-31	83
2023-03-31	77
2023-06-30	81
2023-09-30	78