Quarter	US dollars
2004-12-31	1411
2005-03-31	1236
2005-06-30	1147
2005-09-30	1056
2005-12-31	1016
2006-03-31	968
2006-06-30	731
2006-09-30	863
2006-12-31	1685
2007-03-31	1973
2007-06-30	2155
2007-09-30	2209
2007-12-31	2260
2008-03-31	2059
2008-06-30	3660
2008-09-30	2737
2008-12-31	1589
2009-03-31	1347
2009-06-30	1390
2009-09-30	1470
2009-12-31	1597
2010-03-31	1438
2010-06-30	1587
2010-09-30	1374
2010-12-31	1260
2011-03-31	939
2011-06-30	986
2011-09-30	880
2011-12-31	977
2012-03-31	1115
2012-06-30	929
2012-09-30	1072
2012-12-31	1041
2013-03-31	1035
2013-06-30	1169
2013-09-30	2313
2013-12-31	1679
2014-03-31	1574
2014-06-30	1517
2014-09-30	1474
2014-12-31	1260
2015-03-31	1167
2015-06-30	1200
2015-09-30	1066
2015-12-31	2457
2016-03-31	2329
2016-06-30	1663
2016-09-30	1552
2016-12-31	2963
2017-03-31	2908
2017-06-30	2304
2017-09-30	2254
2017-12-31	2014
2018-03-31	2429
2018-06-30	2087
2018-09-30	1206
2018-12-31	872
2019-03-31	1018
2019-06-30	950
2019-09-30	1921
2019-12-31	1972
2020-03-31	1683
2020-06-30	978
2020-09-30	1653
2020-12-31	1046
2021-03-31	1375
2021-06-30	557
2021-09-30	553
2021-12-31	354
2022-03-31	253
2022-06-30	352
2022-09-30	245
2022-12-31	228
2023-03-31	258
2023-06-30	352
2023-09-30	415