Quarter	US dollars
2004-12-31	1311
2005-03-31	1147
2005-06-30	1190
2005-09-30	1226
2005-12-31	1500
2006-03-31	994
2006-06-30	1169
2006-09-30	2068
2006-12-31	1973
2007-03-31	1732
2007-06-30	1677
2007-09-30	1414
2007-12-31	1306
2008-03-31	1423
2008-06-30	2149
2008-09-30	1666
2008-12-31	1221
2009-03-31	1122
2009-06-30	1250
2009-09-30	1283
2009-12-31	811
2010-03-31	1018
2010-06-30	1103
2010-09-30	1374
2010-12-31	1168
2011-03-31	1832
2011-06-30	1707
2011-09-30	1564
2011-12-31	1950
2012-03-31	2002
2012-06-30	1911
2012-09-30	1923
2012-12-31	2847
2013-03-31	2751
2013-06-30	2448
2013-09-30	4095
2013-12-31	3864
2014-03-31	3563
2014-06-30	5194
2014-09-30	4513
2014-12-31	3349
2015-03-31	3532
2015-06-30	4530
2015-09-30	4078
2015-12-31	2879
2016-03-31	3406
2016-06-30	2905
2016-09-30	2253
2016-12-31	2051
2017-03-31	1418
2017-06-30	1812
2017-09-30	2177
2017-12-31	2117
2018-03-31	1887
2018-06-30	2572
2018-09-30	1729
2018-12-31	1749
2019-03-31	2331
2019-06-30	2310
2019-09-30	1592
2019-12-31	1184
2020-03-31	2104
2020-06-30	1930
2020-09-30	1630
2020-12-31	1046
2021-03-31	1933
2021-06-30	2045
2021-09-30	1853
2021-12-31	2008
2022-03-31	2434
2022-06-30	1846
2022-09-30	2344
2022-12-31	2154
2023-03-31	2345
2023-06-30	2958
2023-09-30	3899