Quarter	US dollars
2004-12-31	180
2005-03-31	257
2005-06-30	219
2005-09-30	214
2005-12-31	189
2006-03-31	210
2006-06-30	176
2006-09-30	336
2006-12-31	350
2007-03-31	331
2007-06-30	369
2007-09-30	493
2007-12-31	488
2008-03-31	491
2008-06-30	488
2008-09-30	408
2008-12-31	295
2009-03-31	192
2009-06-30	291
2009-09-30	261
2009-12-31	702
2010-03-31	551
2010-06-30	878
2010-09-30	422
2010-12-31	847
2011-03-31	914
2011-06-30	923
2011-09-30	762
2011-12-31	671
2012-03-31	601
2012-06-30	618
2012-09-30	623
2012-12-31	558
2013-03-31	1260
2013-06-30	1107
2013-09-30	1122
2013-12-31	897
2014-03-31	785
2014-06-30	728
2014-09-30	323
2014-12-31	284
2015-03-31	264
2015-06-30	236
2015-09-30	277
2015-12-31	279
2016-03-31	220
2016-06-30	205
2016-09-30	182
2016-12-31	169
2017-03-31	166
2017-06-30	233
2017-09-30	231
2017-12-31	381
2018-03-31	254
2018-06-30	440
2018-09-30	250
2018-12-31	258
2019-03-31	356
2019-06-30	680
2019-09-30	278
2019-12-31	332
2020-03-31	468
2020-06-30	597
2020-09-30	467
2020-12-31	463
2021-03-31	346
2021-06-30	269
2021-09-30	283
2021-12-31	290
2022-03-31	488
2022-06-30	412
2022-09-30	340
2022-12-31	335
2023-03-31	342
2023-06-30	363
2023-09-30	338