Quarter	US dollars
2004-12-31	179
2005-03-31	219
2005-06-30	220
2005-09-30	237
2005-12-31	319
2006-03-31	484
2006-06-30	472
2006-09-30	542
2006-12-31	845
2007-03-31	686
2007-06-30	522
2007-09-30	815
2007-12-31	962
2008-03-31	1165
2008-06-30	1208
2008-09-30	1215
2008-12-31	630
2009-03-31	675
2009-06-30	746
2009-09-30	792
2009-12-31	462
2010-03-31	271
2010-06-30	476
2010-09-30	498
2010-12-31	687
2011-03-31	1382
2011-06-30	896
2011-09-30	1114
2011-12-31	1003
2012-03-31	991
2012-06-30	1164
2012-09-30	1101
2014-03-31	1354
2014-06-30	1373
2014-09-30	1337
2014-12-31	1581
2015-03-31	1532
2015-06-30	1678
2015-09-30	1581
2015-12-31	1470
2016-03-31	1488
2016-06-30	1375
2016-09-30	1074
2016-12-31	950
2017-03-31	1377
2017-06-30	3136
2017-09-30	2603
2017-12-31	2661
2018-03-31	2585
2018-06-30	2576
2018-09-30	2410
2018-12-31	2499
2019-03-31	2937
2019-06-30	2986
2019-09-30	3344
2019-12-31	3145
2020-03-31	2964
2020-06-30	2943
2020-09-30	2683
2020-12-31	2657
2021-03-31	3059
2021-06-30	2742
2021-09-30	3008
2021-12-31	2641
2022-03-31	2605
2022-06-30	2545
2022-09-30	2206
2022-12-31	1961
2023-03-31	2024
2023-06-30	1104
2023-09-30	985