Quarter	US dollars
2004-12-31	376
2005-03-31	405
2005-06-30	561
2005-09-30	432
2005-12-31	518
2006-03-31	565
2006-06-30	784
2006-09-30	710
2006-12-31	665
2007-03-31	843
2007-06-30	1443
2007-09-30	2009
2007-12-31	3104
2008-03-31	3570
2008-06-30	2880
2008-09-30	2532
2008-12-31	5339
2009-03-31	4976
2009-06-30	4129
2009-09-30	4406
2009-12-31	3817
2010-03-31	3581
2010-06-30	5104
2010-09-30	4701
2010-12-31	4629
2011-03-31	3209
2011-06-30	2746
2011-09-30	2823
2011-12-31	3571
2012-03-31	4531
2012-06-30	3854
2012-09-30	3931
2012-12-31	3106
2013-03-31	2982
2013-06-30	3062
2013-09-30	3454
2013-12-31	3082
2014-03-31	2771
2014-06-30	2640
2014-09-30	2531
2014-12-31	2828
2015-03-31	3553
2015-06-30	2778
2015-09-30	3108
2015-12-31	3158
2016-03-31	3304
2016-06-30	3485
2016-09-30	2372
2016-12-31	2098
2017-03-31	1845
2017-06-30	1790
2017-09-30	1540
2017-12-31	1492
2018-03-31	1194
2018-06-30	770
2018-09-30	1161
2018-12-31	1354
2019-03-31	1141
2019-06-30	1286
2019-09-30	6473
2019-12-31	5291
2020-03-31	11994
2020-06-30	12143
2020-09-30	11878
2020-12-31	3744
2021-03-31	2590
2021-06-30	2521
2021-09-30	2192
2021-12-31	1999
2022-03-31	1935
2022-06-30	2631
2022-09-30	3757
2022-12-31	4006
2023-03-31	3060
2023-06-30	4400
2023-09-30	4454