Quarter	US dollars
2004-12-31	38
2005-03-31	-624
2005-06-30	-2425
2005-09-30	-1516
2005-12-31	-1281
2006-03-31	-343
2006-06-30	359
2006-09-30	437
2006-12-31	458
2007-03-31	869
2007-06-30	670
2007-09-30	379
2007-12-31	589
2008-03-31	1200
2008-06-30	-312
2008-09-30	-863
2008-12-31	-403
2009-03-31	391
2009-06-30	-160
2009-09-30	150
2009-12-31	265
2010-03-31	64
2010-06-30	166
2010-09-30	2406
2010-12-31	916
2011-03-31	975
2011-06-30	16
2011-09-30	-162
2011-12-31	-402
2012-03-31	-408
2012-06-30	-2271
2012-09-30	-1954
2012-12-31	-1895
2013-03-31	-1674
2013-06-30	-1505
2013-09-30	-1721
2013-12-31	-1613
2014-03-31	-1319
2014-06-30	-1484
2014-09-30	-1449
2014-12-31	-1206
2015-03-31	-1278
2015-06-30	-1793
2015-09-30	-2016
2015-12-31	-2189
2016-03-31	-2204
2016-06-30	-2030
2016-09-30	-2481
2016-12-31	-2242
2017-03-31	-2152
2017-06-30	-2225
2017-09-30	-2253
2017-12-31	-2403
2018-03-31	-2301
2018-06-30	-2201
2018-09-30	-2203
2018-12-31	-2384
2019-03-31	-2782
2019-06-30	-2549
2019-09-30	-2523
2019-12-31	-2452
2020-03-31	-2765
2020-06-30	-2668
2020-09-30	-2459
2020-12-31	-2273
2021-03-31	-2050
2021-06-30	-1893
2021-09-30	-2329
2021-12-31	-2146
2022-03-31	-2082
2022-06-30	-2004
2022-09-30	-1844
2022-12-31	-1417
2023-03-31	-793
2023-06-30	-523
2023-09-30	316