Quarter	US dollars
2004-12-31	589
2005-03-31	586
2005-06-30	597
2005-09-30	755
2005-12-31	848
2006-03-31	916
2006-06-30	904
2006-09-30	932
2006-12-31	881
2007-03-31	881
2007-06-30	1019
2007-09-30	976
2007-12-31	1350
2008-03-31	1373
2008-06-30	1584
2008-09-30	1590
2008-12-31	982
2009-03-31	860
2009-06-30	965
2009-09-30	1030
2009-12-31	1381
2010-03-31	1203
2010-06-30	1092
2010-09-30	1478
2010-12-31	1259
2011-03-31	1029
2011-06-30	1207
2011-09-30	1150
2011-12-31	887
2012-03-31	679
2012-06-30	869
2012-09-30	1497
2012-12-31	1431
2013-03-31	1002
2013-06-30	861
2013-09-30	1090
2013-12-31	1238
2014-03-31	1157
2014-06-30	1157
2014-09-30	1195
2014-12-31	1378
2015-03-31	1094
2015-06-30	1132
2015-09-30	1380
2015-12-31	1279
2016-03-31	1031
2016-06-30	1492
2016-09-30	1216
2016-12-31	1510
2017-03-31	1337
2017-06-30	2151
2017-09-30	1862
2017-12-31	2248
2018-03-31	1551
2018-06-30	2275
2018-09-30	3044
2018-12-31	2302
2019-03-31	2322
2019-06-30	1902
2019-09-30	2645
2019-12-31	2752
2020-03-31	2184
2020-06-30	1790
2020-09-30	2836
2020-12-31	2903
2021-03-31	2348
2021-06-30	3189
2021-09-30	3376
2021-12-31	3697
2022-03-31	2622
2022-06-30	2479
2022-09-30	3684
2022-12-31	3135
2023-03-31	2744
2023-06-30	2117
2023-09-30	2599