Quarter	US dollars
2004-12-31	234
2005-03-31	514
2005-06-30	247
2005-09-30	340
2005-12-31	414
2006-03-31	494
2006-06-30	560
2006-09-30	648
2006-12-31	793
2007-03-31	720
2007-06-30	746
2007-09-30	1938
2007-12-31	774
2008-03-31	1047
2008-06-30	923
2008-09-30	1224
2008-12-31	1048
2009-03-31	1288
2009-06-30	1176
2009-09-30	1012
2009-12-31	1063
2010-03-31	1274
2010-06-30	5401
2010-09-30	6143
2010-12-31	3632
2011-03-31	2044
2011-06-30	1944
2011-09-30	3385
2011-12-31	2661
2012-03-31	4497
2012-06-30	5642
2012-09-30	4730
2012-12-31	3059
2013-03-31	3346
2013-06-30	5107
2013-09-30	5035
2013-12-31	1988
2014-03-31	2251
2014-06-30	2635
2014-09-30	2605
2014-12-31	2870
2015-03-31	3698
2015-06-30	4041
2015-09-30	5768
2015-12-31	6043
2016-03-31	4673
2016-06-30	3905
2016-09-30	4309
2016-12-31	5442
2017-03-31	3881
2017-06-30	5318
2017-09-30	6727
2017-12-31	6216
2018-03-31	4978
2018-06-30	5564
2018-09-30	8256
2018-12-31	6562
2019-03-31	5957
2019-06-30	5754
2019-09-30	6862
2019-12-31	7674
2020-03-31	9186
2020-06-30	8241
2020-09-30	9124
2020-12-31	8543
2021-03-31	8860
2021-06-30	7957
2021-09-30	8134
2021-12-31	6934
2022-03-31	6419
2022-06-30	7496
2022-09-30	8488
2022-12-31	10106
2023-03-31	10303
2023-06-30	10506
2023-09-30	9250