Quarter	US dollars
2004-12-31	2214
2005-03-31	2820
2005-06-30	2339
2005-09-30	2586
2005-12-31	2681
2006-03-31	2819
2006-06-30	2391
2006-09-30	2573
2006-12-31	2540
2007-03-31	2477
2007-06-30	2598
2007-09-30	2728
2007-12-31	2582
2008-03-31	2906
2008-06-30	4052
2008-09-30	2858
2008-12-31	1568
2009-03-31	1923
2009-06-30	1317
2009-09-30	1567
2009-12-31	1909
2010-03-31	2436
2010-06-30	2000
2010-09-30	1369
2010-12-31	2029
2011-03-31	2106
2011-06-30	2209
2011-09-30	1717
2011-12-31	2022
2012-03-31	2058
2012-06-30	2731
2012-09-30	2539
2012-12-31	2352
2013-03-31	2380
2013-06-30	1981
2013-09-30	2777
2013-12-31	2529
2014-03-31	2506
2014-06-30	3153
2014-09-30	2424
2014-12-31	2759
2015-03-31	3047
2015-06-30	3132
2015-09-30	2752
2015-12-31	2567
2016-03-31	2326
2016-06-30	2236
2016-09-30	1889
2016-12-31	2414
2017-03-31	2635
2017-06-30	3841
2017-09-30	3086
2017-12-31	2961
2018-03-31	2690
2018-06-30	3137
2018-09-30	2866
2018-12-31	2656
2019-03-31	3125
2019-06-30	2236
2019-09-30	2166
2019-12-31	1124
2020-03-31	2373
2020-06-30	1624
2020-09-30	2316
2020-12-31	2020
2021-03-31	2221
2021-06-30	2438
2021-09-30	2501
2021-12-31	1950
2022-03-31	1852
2022-06-30	1727
2022-09-30	2329
2022-12-31	1686
2023-03-31	1687
2023-06-30	2405
2023-09-30	2766