Quarter	US dollars
2004-12-31	348
2005-03-31	745
2005-06-30	746
2005-09-30	746
2005-12-31	688
2006-03-31	737
2006-06-30	764
2006-09-30	699
2006-12-31	871
2007-03-31	788
2007-06-30	867
2007-09-30	896
2007-12-31	1059
2008-03-31	1224
2008-06-30	1298
2008-09-30	1171
2008-12-31	1140
2009-03-31	1195
2009-06-30	1049
2009-09-30	1136
2009-12-31	1082
2010-03-31	1048
2010-06-30	1163
2010-09-30	1155
2010-12-31	1184
2011-03-31	1034
2011-06-30	986
2011-09-30	1128
2011-12-31	1340
2012-03-31	1266
2012-06-30	1048
2012-09-30	1843
2013-03-31	1038
2013-06-30	951
2014-03-31	1139
2014-06-30	1145
2014-09-30	1047
2014-12-31	976
2015-03-31	1350
2015-06-30	1337
2015-09-30	1200
2015-12-31	883
2016-03-31	903
2016-06-30	1113
2016-09-30	1280
2016-12-31	1134
2017-03-31	1191
2017-06-30	1367
2017-09-30	1266
2017-12-31	1498
2018-03-31	1405
2018-06-30	1234
2018-09-30	1247
2018-12-31	1384
2019-03-31	1420
2019-06-30	1558
2019-09-30	1520
2019-12-31	1643
2020-03-31	1351
2020-06-30	1395
2020-09-30	1502
2020-12-31	1529
2021-03-31	1527
2021-06-30	1441
2021-09-30	1560
2021-12-31	1527
2022-03-31	1300
2022-06-30	1219
2022-09-30	1177
2022-12-31	1028
2023-03-31	1068
2023-06-30	1117
2023-09-30	1365