Quarter	US dollars
2004-12-31	764
2005-03-31	854
2005-06-30	882
2005-09-30	1148
2005-12-31	1008
2006-03-31	1219
2006-06-30	1409
2006-09-30	1588
2006-12-31	1534
2007-03-31	1997
2007-06-30	2199
2007-09-30	2162
2007-12-31	2564
2008-03-31	2168
2008-06-30	2048
2008-09-30	2434
2008-12-31	1984
2009-03-31	2099
2009-06-30	1869
2009-09-30	1996
2009-12-31	2312
2010-03-31	2586
2010-06-30	2936
2010-09-30	2932
2010-12-31	2868
2011-03-31	2903
2011-06-30	3014
2011-09-30	3178
2011-12-31	3432
2012-03-31	3530
2012-06-30	3885
2012-09-30	3969
2012-12-31	4336
2013-03-31	4818
2013-06-30	3086
2013-09-30	3525
2013-12-31	4306
2014-03-31	3915
2014-06-30	4296
2014-09-30	4348
2014-12-31	3409
2015-03-31	3603
2015-06-30	3788
2015-09-30	3340
2015-12-31	4142
2016-03-31	3681
2016-06-30	3074
2016-09-30	2194
2016-12-31	2136
2017-03-31	1920
2017-06-30	1499
2017-09-30	1967
2017-12-31	1492
2018-03-31	1900
2018-06-30	1701
2018-09-30	1316
2018-12-31	1655
2019-03-31	1883
2019-06-30	1412
2019-09-30	1921
2019-12-31	1947
2020-03-31	1730
2020-06-30	1484
2020-09-30	3036
2020-12-31	2935
2021-03-31	2418
2021-06-30	2276
2021-09-30	1988
2021-12-31	2059
2022-03-31	1743
2022-06-30	1678
2022-09-30	1385
2022-12-31	1360
2023-03-31	1246
2023-06-30	2402
2023-09-30	1553