Quarter	US dollars
2004-12-31	837
2005-03-31	1354
2005-06-30	3176
2005-09-30	2466
2005-12-31	2225
2006-03-31	1339
2006-06-30	797
2006-09-30	768
2006-12-31	967
2007-03-31	1053
2007-06-30	1336
2007-09-30	1760
2007-12-31	1284
2008-03-31	1447
2008-06-30	1383
2008-09-30	1536
2008-12-31	1475
2009-03-31	1010
2009-06-30	1406
2009-09-30	971
2009-12-31	878
2010-03-31	824
2010-06-30	799
2010-09-30	770
2010-12-31	814
2011-03-31	742
2011-06-30	796
2011-09-30	918
2011-12-31	1076
2012-03-31	1077
2012-06-30	2988
2012-09-30	2645
2012-12-31	2545
2013-03-31	2326
2013-06-30	2248
2013-09-30	2345
2013-12-31	2325
2014-03-31	2049
2014-06-30	2276
2014-09-30	2172
2014-12-31	1898
2015-03-31	1933
2015-06-30	1823
2015-09-30	2043
2015-12-31	2204
2016-03-31	2217
2016-06-30	2043
2016-09-30	2484
2016-12-31	2251
2017-03-31	2149
2017-06-30	2224
2017-09-30	2253
2017-12-31	2407
2018-03-31	2303
2018-06-30	2204
2018-09-30	2204
2018-12-31	2394
2019-03-31	2782
2019-06-30	2549
2019-09-30	2523
2019-12-31	2452
2020-03-31	2782
2020-06-30	2686
2020-09-30	2470
2020-12-31	2292
2021-03-31	2115
2021-06-30	1972
2021-09-30	2415
2021-12-31	2172
2022-03-31	2082
2022-06-30	2004
2022-09-30	1880
2022-12-31	1442
2023-03-31	920
2023-06-30	648
2023-09-30	430