Quarter	US dollars
2004-12-31	-503
2005-03-31	-603
2005-06-30	-445
2005-09-30	-345
2005-12-31	-383
2006-03-31	-340
2006-06-30	-325
2006-09-30	-331
2006-12-31	-309
2007-03-31	-353
2007-06-30	-363
2007-09-30	-473
2007-12-31	-410
2008-03-31	-727
2008-06-30	-1114
2008-09-30	-1139
2008-12-31	-454
2009-03-31	-718
2009-06-30	-904
2009-09-30	-1666
2009-12-31	-631
2010-03-31	-637
2010-06-30	-1281
2010-09-30	-1139
2010-12-31	-653
2011-03-31	-712
2011-06-30	-403
2011-09-30	-391
2011-12-31	-227
2012-03-31	-382
2012-06-30	-337
2012-09-30	-187
2012-12-31	-160
2013-03-31	-71
2013-06-30	-378
2013-09-30	-398
2013-12-31	-706
2014-03-31	-842
2014-06-30	-456
2014-09-30	-423
2014-12-31	-346
2015-03-31	-206
2015-06-30	-217
2015-09-30	-271
2015-12-31	-261
2016-03-31	-443
2016-06-30	-412
2016-09-30	-394
2016-12-31	-349
2017-03-31	-374
2017-06-30	-403
2017-09-30	-354
2017-12-31	-190
2018-03-31	-8
2018-06-30	-356
2018-09-30	-280
2018-12-31	-190
2019-03-31	-137
2019-06-30	-106
2019-09-30	-181
2019-12-31	-144
2020-03-31	-145
2020-06-30	-51
2020-09-30	-30
2020-12-31	-4
2021-03-31	-4
2021-06-30	-1
2021-09-30	31
2021-12-31	34
2022-03-31	25
2022-06-30	2
2022-09-30	3
2022-12-31	185
2023-03-31	5
2023-06-30	5
2023-09-30	5