Quarter	US dollars
2004-12-31	1156
2005-03-31	1342
2005-06-30	1407
2005-09-30	1498
2005-12-31	1648
2006-03-31	1866
2006-06-30	1962
2006-09-30	1962
2006-12-31	2752
2007-03-31	3872
2007-06-30	3076
2007-09-30	4880
2007-12-31	5310
2008-03-31	6877
2008-06-30	6372
2008-09-30	7178
2008-12-31	6113
2009-03-31	6824
2009-06-30	7106
2009-09-30	7624
2009-12-31	7885
2010-03-31	8663
2010-06-30	9977
2010-09-30	10239
2010-12-31	12413
2011-03-31	11288
2011-06-30	10112
2011-09-30	9100
2011-12-31	6804
2012-03-31	6226
2012-06-30	6150
2012-09-30	6694
2012-12-31	6163
2013-03-31	7320
2013-06-30	7893
2013-09-30	7279
2013-12-31	6785
2014-03-31	7104
2014-06-30	7186
2014-09-30	8498
2014-12-31	7838
2015-03-31	8197
2015-06-30	7677
2015-09-30	7740
2015-12-31	7260
2016-03-31	6637
2016-06-30	6548
2016-09-30	6840
2016-12-31	6036
2017-03-31	5952
2017-06-30	6208
2017-09-30	6001
2017-12-31	5653
2018-03-31	7059
2018-06-30	6207
2018-09-30	6449
2018-12-31	7997
2019-03-31	7572
2019-06-30	8076
2019-09-30	6426
2019-12-31	6830
2020-03-31	9437
2020-06-30	8992
2020-09-30	8852
2020-12-31	9730
2021-03-31	8024
2021-06-30	10234
2021-09-30	9860
2021-12-31	9295
2022-03-31	8538
2022-06-30	8837
2022-09-30	7727
2022-12-31	10389
2023-03-31	10524
2023-06-30	10547
2023-09-30	10891