Quarter	US dollars
2004-12-31	109
2005-03-31	117
2005-06-30	113
2005-09-30	85
2005-12-31	105
2006-03-31	101
2006-06-30	96
2006-09-30	65
2006-12-31	63
2007-03-31	104
2007-06-30	154
2007-09-30	206
2007-12-31	227
2008-03-31	399
2008-06-30	326
2008-09-30	360
2008-12-31	345
2009-03-31	363
2009-06-30	326
2009-09-30	361
2009-12-31	418
2010-03-31	504
2010-06-30	588
2010-09-30	638
2010-12-31	822
2011-03-31	749
2011-06-30	888
2011-09-30	914
2011-12-31	996
2012-03-31	1251
2012-06-30	1214
2012-09-30	1350
2012-12-31	1593
2013-03-31	1439
2013-06-30	1407
2013-09-30	1593
2013-12-31	600
2014-03-31	627
2014-06-30	615
2014-09-30	525
2014-12-31	482
2015-03-31	480
2015-06-30	525
2015-09-30	436
2015-12-31	449
2016-03-31	318
2016-06-30	317
2016-09-30	273
2016-12-31	229
2017-03-31	138
2017-06-30	222
2017-09-30	219
2017-12-31	222
2018-03-31	187
2018-06-30	203
2018-09-30	179
2018-12-31	406
2019-03-31	412
2019-06-30	350
2019-09-30	345
2019-12-31	244
2020-03-31	246
2020-06-30	243
2020-09-30	243
2020-12-31	246
2021-03-31	247
2021-06-30	245
2021-09-30	244
2021-12-31	186
2022-03-31	187
2022-06-30	187
2022-09-30	178
2022-12-31	177
2023-03-31	167
2023-06-30	167
2023-09-30	170