Quarter	US dollars
2004-12-31	1421
2005-03-31	1374
2005-06-30	1789
2005-09-30	1772
2005-12-31	906
2006-03-31	1729
2006-06-30	1420
2006-09-30	1874
2006-12-31	982
2007-03-31	973
2007-06-30	1453
2007-09-30	1785
2007-12-31	1433
2008-03-31	1894
2008-06-30	2102
2008-09-30	2017
2008-12-31	1560
2009-03-31	2817
2009-06-30	2694
2009-09-30	1810
2009-12-31	1555
2010-03-31	1447
2010-06-30	1537
2010-09-30	1610
2010-12-31	1756
2011-03-31	1577
2011-06-30	1883
2011-09-30	1474
2011-12-31	1538
2012-03-31	1897
2012-06-30	2562
2012-09-30	1931
2012-12-31	2071
2013-03-31	2157
2013-06-30	1690
2013-09-30	1908
2013-12-31	2064
2014-03-31	2541
2014-06-30	2310
2014-09-30	2351
2014-12-31	2038
2015-03-31	2224
2015-06-30	2311
2015-09-30	2457
2015-12-31	3296
2016-03-31	2204
2016-06-30	2220
2016-09-30	2024
2016-12-31	1761
2017-03-31	2152
2017-06-30	2906
2017-09-30	3838
2017-12-31	4249
2018-03-31	4277
2018-06-30	4056
2018-09-30	5138
2018-12-31	4792
2019-03-31	4485
2019-06-30	4231
2019-09-30	4199
2019-12-31	4797
2020-03-31	3839
2020-06-30	3406
2020-09-30	3783
2020-12-31	3864
2021-03-31	4131
2021-06-30	4385
2021-09-30	4382
2021-12-31	4309
2022-03-31	4663
2022-06-30	4802
2022-09-30	5142
2022-12-31	5939
2023-03-31	5489
2023-06-30	5044
2023-09-30	5334