Quarter	US dollars
2004-12-31	323
2005-03-31	497
2005-06-30	554
2005-09-30	594
2005-12-31	673
2006-03-31	503
2006-06-30	411
2006-09-30	314
2006-12-31	2828
2007-03-31	2962
2007-06-30	3307
2007-09-30	3533
2007-12-31	3018
2008-03-31	3542
2008-06-30	3688
2008-09-30	3833
2008-12-31	3375
2009-03-31	2956
2009-06-30	2916
2009-09-30	417
2009-12-31	736
2010-03-31	2016
2010-06-30	1050
2010-09-30	2140
2010-12-31	1107
2011-03-31	2536
2011-06-30	6149
2011-09-30	4113
2011-12-31	4875
2012-03-31	5629
2012-06-30	5445
2012-09-30	4745
2012-12-31	4970
2013-03-31	2711
2013-06-30	2727
2013-09-30	2102
2013-12-31	3582
2014-03-31	1659
2014-06-30	4062
2014-09-30	2467
2014-12-31	3201
2015-03-31	3044
2015-06-30	2690
2015-09-30	3181
2015-12-31	3245
2016-03-31	2502
2016-06-30	1573
2016-09-30	2219
2016-12-31	2139
2017-03-31	2306
2017-06-30	1421
2017-09-30	2098
2017-12-31	2109
2018-03-31	3267
2018-06-30	2110
2018-09-30	3102
2018-12-31	3555
2019-03-31	4220
2019-06-30	2280
2019-09-30	1805
2019-12-31	6205
2020-03-31	4543
2020-06-30	3904
2020-09-30	2802
2020-12-31	3294
2021-03-31	2028
2021-06-30	2894
2021-09-30	1471
2021-12-31	2505
2022-03-31	2281
2022-06-30	2409
2022-09-30	1050
2022-12-31	1691
2023-03-31	1093
2023-06-30	1228
2023-09-30	721