Quarter	US dollars
2004-12-31	378
2005-03-31	444
2005-06-30	778
2005-09-30	929
2005-12-31	1073
2006-03-31	1034
2006-06-30	1043
2006-09-30	1440
2006-12-31	1096
2007-03-31	1073
2007-06-30	1095
2007-09-30	1159
2007-12-31	1236
2008-03-31	1457
2008-06-30	1532
2008-09-30	1502
2008-12-31	1495
2009-03-31	1485
2009-06-30	1494
2009-09-30	1419
2009-12-31	1398
2010-03-31	1389
2010-06-30	1363
2010-09-30	1524
2010-12-31	1753
2011-03-31	1795
2011-06-30	1932
2011-09-30	1905
2011-12-31	1882
2012-03-31	1766
2012-06-30	1746
2012-09-30	1788
2012-12-31	1890
2013-03-31	1946
2013-06-30	1799
2013-09-30	1890
2013-12-31	1902
2014-03-31	1881
2014-06-30	1864
2014-09-30	2168
2014-12-31	2369
2015-03-31	2264
2015-06-30	2221
2015-09-30	2027
2015-12-31	2047
2016-03-31	2017
2016-06-30	2306
2016-09-30	2301
2016-12-31	2336
2017-03-31	2235
2017-06-30	2567
2017-09-30	2552
2017-12-31	2295
2018-03-31	2487
2018-06-30	2505
2018-09-30	2546
2018-12-31	2364
2019-03-31	2416
2019-06-30	2459
2019-09-30	2401
2019-12-31	2371
2020-03-31	2357
2020-06-30	2231
2020-09-30	2136
2020-12-31	2107
2021-03-31	2091
2021-06-30	2099
2021-09-30	2137
2021-12-31	1933
2022-03-31	1677
2022-06-30	1434
2022-09-30	1819
2022-12-31	1318
2023-03-31	1224
2023-06-30	1273
2023-09-30	1186