Quarter	US dollars
2004-12-31	1094
2005-03-31	1104
2005-06-30	1160
2005-09-30	987
2005-12-31	1032
2006-03-31	1020
2006-06-30	1058
2006-09-30	1076
2006-12-31	1004
2007-03-31	1034
2007-06-30	1091
2007-09-30	1339
2007-12-31	1513
2008-03-31	2465
2008-06-30	2330
2008-09-30	2335
2008-12-31	2205
2009-03-31	2145
2009-06-30	2151
2009-09-30	2129
2009-12-31	2209
2010-03-31	2073
2010-06-30	1968
2010-09-30	2015
2010-12-31	2068
2011-03-31	2036
2011-06-30	2124
2011-09-30	2083
2011-12-31	2044
2012-03-31	1783
2012-06-30	1909
2012-09-30	1901
2012-12-31	1706
2013-03-31	1851
2013-06-30	1823
2013-09-30	2045
2013-12-31	2041
2014-03-31	2031
2014-06-30	2038
2014-09-30	1929
2014-12-31	1917
2015-03-31	1712
2015-06-30	1796
2015-09-30	1842
2015-12-31	1912
2016-03-31	1866
2016-06-30	1904
2016-09-30	1893
2016-12-31	1786
2017-03-31	1723
2017-06-30	1404
2017-09-30	1398
2017-12-31	1414
2018-03-31	1305
2018-06-30	1326
2018-09-30	1264
2018-12-31	1259
2019-03-31	1237
2019-06-30	1118
2019-09-30	1239
2019-12-31	1485
2020-03-31	1590
2020-06-30	1462
2020-09-30	1463
2020-12-31	1260
2021-03-31	1112
2021-06-30	1148
2021-09-30	1250
2021-12-31	1166
2022-03-31	1269
2022-06-30	1614
2022-09-30	1434
2022-12-31	1211
2023-03-31	1259
2023-06-30	1109
2023-09-30	1271