Quarter	US dollars
2004-12-31	447
2005-03-31	354
2005-06-30	332
2005-09-30	340
2005-12-31	312
2006-03-31	326
2006-06-30	314
2006-09-30	303
2006-12-31	327
2007-03-31	337
2007-06-30	341
2007-09-30	338
2007-12-31	462
2008-03-31	169
2008-06-30	269
2008-09-30	223
2008-12-31	152
2009-03-31	216
2009-06-30	209
2009-09-30	230
2009-12-31	237
2010-03-31	218
2010-06-30	253
2010-09-30	246
2010-12-31	224
2011-03-31	261
2011-06-30	366
2011-09-30	351
2011-12-31	410
2012-03-31	363
2012-06-30	631
2012-09-30	790
2012-12-31	787
2013-03-31	991
2013-06-30	1016
2013-09-30	782
2013-12-31	1121
2014-03-31	812
2014-06-30	1043
2014-09-30	982
2014-12-31	1004
2015-03-31	932
2015-06-30	1007
2015-09-30	880
2015-12-31	1057
2016-03-31	814
2016-06-30	1295
2016-09-30	1150
2016-12-31	972
2017-03-31	1049
2017-06-30	933
2017-09-30	1128
2017-12-31	1056
2018-03-31	989
2018-06-30	966
2018-09-30	845
2018-12-31	1092
2019-03-31	1031
2019-06-30	868
2019-09-30	888
2019-12-31	1036
2020-03-31	874
2020-06-30	853
2020-09-30	819
2020-12-31	804
2021-03-31	836
2021-06-30	1219
2021-09-30	994
2021-12-31	760
2022-03-31	591
2022-06-30	909
2022-09-30	801
2022-12-31	794
2023-03-31	760
2023-06-30	772
2023-09-30	844