Quarter	US dollars
2004-12-31	198
2005-03-31	253
2005-06-30	357
2005-09-30	460
2005-12-31	391
2006-03-31	676
2006-06-30	551
2006-09-30	663
2006-12-31	851
2007-03-31	1159
2007-06-30	1467
2007-09-30	1610
2007-12-31	1499
2008-03-31	1914
2008-06-30	1803
2008-09-30	2110
2008-12-31	1803
2009-03-31	1677
2009-06-30	1746
2009-09-30	1735
2009-12-31	1705
2010-03-31	1838
2010-06-30	1405
2010-09-30	1443
2010-12-31	1349
2011-03-31	1587
2011-06-30	1326
2011-09-30	2776
2011-12-31	1252
2012-03-31	1251
2012-06-30	1219
2012-09-30	1182
2012-12-31	1093
2013-03-31	1023
2013-06-30	1122
2013-09-30	1232
2013-12-31	1398
2014-03-31	1632
2014-06-30	1797
2014-09-30	1853
2014-12-31	1898
2015-03-31	1890
2015-06-30	1766
2015-09-30	1899
2015-12-31	1697
2016-03-31	1602
2016-06-30	1869
2016-09-30	2202
2016-12-31	2751
2017-03-31	2999
2017-06-30	2534
2017-09-30	3119
2017-12-31	3910
2018-03-31	2370
2018-06-30	2126
2018-09-30	2420
2018-12-31	1923
2019-03-31	2185
2019-06-30	1912
2019-09-30	1863
2019-12-31	1824
2020-03-31	1805
2020-06-30	1441
2020-09-30	1475
2020-12-31	1370
2021-03-31	1301
2021-06-30	1271
2021-09-30	1222
2021-12-31	1171
2022-03-31	1087
2022-06-30	1133
2022-09-30	1187
2022-12-31	1119
2023-03-31	1246
2023-06-30	1197
2023-09-30	1052