Quarter	US dollars
2004-12-31	973
2005-03-31	966
2005-06-30	814
2005-09-30	725
2005-12-31	486
2006-03-31	392
2006-06-30	433
2006-09-30	456
2006-12-31	638
2007-03-31	388
2007-06-30	387
2007-09-30	359
2007-12-31	691
2008-03-31	978
2008-06-30	756
2008-09-30	663
2008-12-31	588
2009-03-31	1108
2009-06-30	1304
2009-09-30	1345
2009-12-31	1176
2010-03-31	1027
2010-06-30	1035
2010-09-30	1160
2010-12-31	1166
2011-03-31	992
2011-06-30	764
2011-09-30	975
2011-12-31	1438
2012-03-31	654
2012-06-30	14
2012-09-30	18
2012-12-31	26
2013-03-31	79
2013-06-30	300
2013-09-30	189
2013-12-31	217
2014-03-31	238
2014-06-30	125
2014-09-30	538
2014-12-31	187
2015-03-31	128
2015-06-30	129
2015-09-30	262
2015-12-31	196
2016-03-31	306
2016-06-30	277
2016-09-30	244
2016-12-31	169
2017-03-31	164
2017-06-30	195
2017-09-30	144
2017-12-31	186
2018-03-31	276
2018-06-30	158
2018-09-30	224
2018-12-31	176
2019-03-31	330
2019-06-30	202
2019-09-30	79
2019-12-31	90
2020-03-31	778
2020-06-30	687
2020-09-30	454
2020-12-31	438
2021-03-31	523
2021-06-30	149
2021-09-30	270
2021-12-31	476
2022-03-31	309
2022-06-30	298
2022-09-30	280
2022-12-31	13
2023-03-31	47
2023-06-30	40
2023-09-30	36