Quarter	US dollars
2004-12-31	106
2005-03-31	106
2005-06-30	100
2005-09-30	113
2005-12-31	103
2006-03-31	95
2006-06-30	124
2006-09-30	121
2006-12-31	123
2007-03-31	106
2007-06-30	185
2007-09-30	183
2007-12-31	181
2008-03-31	211
2008-06-30	330
2008-09-30	367
2008-12-31	318
2009-03-31	324
2009-06-30	352
2009-09-30	345
2009-12-31	220
2010-03-31	312
2010-06-30	311
2010-09-30	362
2010-12-31	319
2011-03-31	256
2011-06-30	295
2011-09-30	369
2011-12-31	393
2012-03-31	368
2012-06-30	428
2012-09-30	347
2012-12-31	276
2013-03-31	2446
2013-06-30	416
2013-09-30	784
2013-12-31	874
2014-03-31	392
2014-06-30	503
2014-09-30	572
2014-12-31	439
2015-03-31	428
2015-06-30	357
2015-09-30	535
2015-12-31	605
2016-03-31	572
2016-06-30	584
2016-09-30	596
2016-12-31	733
2017-03-31	690
2017-06-30	562
2017-09-30	525
2017-12-31	519
2018-03-31	577
2018-06-30	510
2018-09-30	466
2018-12-31	444
2019-03-31	336
2019-06-30	414
2019-09-30	410
2019-12-31	332
2020-03-31	265
2020-06-30	257
2020-09-30	177
2020-12-31	171
2021-03-31	135
2021-06-30	156
2021-09-30	239
2021-12-31	190
2022-03-31	180
2022-06-30	179
2022-09-30	177
2022-12-31	129
2023-03-31	137
2023-06-30	157
2023-09-30	177