Quarter	US dollars
2004-12-31	83
2005-03-31	100
2005-06-30	133
2005-09-30	136
2005-12-31	142
2006-03-31	147
2006-06-30	159
2006-09-30	146
2006-12-31	166
2007-03-31	159
2007-06-30	203
2007-09-30	200
2007-12-31	223
2008-03-31	264
2008-06-30	289
2008-09-30	387
2008-12-31	424
2009-03-31	460
2009-06-30	448
2009-09-30	389
2009-12-31	433
2010-03-31	382
2010-06-30	386
2010-09-30	402
2010-12-31	421
2011-03-31	508
2011-06-30	443
2011-09-30	414
2011-12-31	400
2012-03-31	411
2012-06-30	453
2012-09-30	426
2012-12-31	466
2013-03-31	427
2013-06-30	396
2013-09-30	437
2013-12-31	402
2014-03-31	112
2014-06-30	145
2014-09-30	169
2014-12-31	208
2015-03-31	178
2015-06-30	186
2015-09-30	215
2015-12-31	221
2016-03-31	227
2016-06-30	248
2016-09-30	227
2016-12-31	390
2017-03-31	255
2017-06-30	240
2017-09-30	236
2017-12-31	262
2018-03-31	342
2018-06-30	334
2018-09-30	336
2018-12-31	407
2019-03-31	435
2019-06-30	411
2019-09-30	395
2019-12-31	407
2020-03-31	407
2020-06-30	295
2020-09-30	305
2020-12-31	403
2021-03-31	459
2021-06-30	517
2021-09-30	546
2021-12-31	569
2022-03-31	602
2022-06-30	638
2022-09-30	643
2022-12-31	602
2023-03-31	582
2023-06-30	626
2023-09-30	618