Quarter	US dollars
2004-12-31	52
2005-03-31	78
2005-06-30	75
2005-09-30	74
2005-12-31	64
2006-03-31	61
2006-06-30	96
2006-09-30	120
2006-12-31	94
2007-03-31	92
2007-06-30	130
2007-09-30	134
2007-12-31	165
2008-03-31	195
2008-06-30	187
2008-09-30	292
2008-12-31	267
2009-03-31	219
2009-06-30	240
2009-09-30	264
2009-12-31	203
2010-03-31	214
2010-06-30	130
2010-09-30	235
2010-12-31	412
2011-03-31	298
2011-06-30	244
2011-09-30	266
2011-12-31	301
2012-03-31	326
2012-06-30	351
2012-09-30	392
2012-12-31	354
2013-03-31	295
2013-06-30	267
2013-09-30	319
2013-12-31	509
2014-03-31	428
2014-06-30	373
2014-09-30	431
2014-12-31	322
2015-03-31	339
2015-06-30	579
2015-09-30	359
2015-12-31	418
2016-03-31	411
2016-06-30	332
2016-09-30	352
2016-12-31	410
2017-03-31	371
2017-06-30	273
2017-09-30	232
2017-12-31	238
2018-03-31	305
2018-06-30	321
2018-09-30	340
2018-12-31	289
2019-03-31	263
2019-06-30	247
2019-09-30	266
2019-12-31	280
2020-03-31	274
2020-06-30	184
2020-09-30	322
2020-12-31	197
2021-03-31	112
2021-06-30	160
2021-09-30	205
2021-12-31	163
2022-03-31	130
2022-06-30	136
2022-09-30	135
2022-12-31	107
2023-03-31	119
2023-06-30	178
2023-09-30	216