Quarter	US dollars
2004-12-31	35
2005-03-31	34
2005-06-30	47
2005-09-30	64
2005-12-31	60
2006-03-31	64
2006-06-30	74
2006-09-30	95
2006-12-31	112
2007-03-31	124
2007-06-30	136
2007-09-30	141
2007-12-31	195
2008-03-31	193
2008-06-30	205
2008-09-30	217
2008-12-31	217
2009-03-31	186
2009-06-30	170
2009-09-30	150
2009-12-31	149
2010-03-31	138
2010-06-30	162
2010-09-30	197
2010-12-31	224
2011-03-31	216
2011-06-30	222
2011-09-30	246
2011-12-31	252
2012-03-31	251
2012-06-30	238
2012-09-30	258
2012-12-31	260
2013-03-31	263
2013-06-30	258
2013-09-30	275
2013-12-31	302
2014-03-31	292
2014-06-30	289
2014-09-30	326
2014-12-31	440
2015-03-31	438
2015-06-30	420
2015-09-30	397
2015-12-31	363
2016-03-31	326
2016-06-30	342
2016-09-30	322
2016-12-31	279
2017-03-31	275
2017-06-30	300
2017-09-30	288
2017-12-31	247
2018-03-31	286
2018-06-30	283
2018-09-30	282
2018-12-31	273
2019-03-31	292
2019-06-30	293
2019-09-30	319
2019-12-31	325
2020-03-31	322
2020-06-30	326
2020-09-30	326
2020-12-31	293
2021-03-31	298
2021-06-30	326
2021-09-30	355
2021-12-31	350
2022-03-31	412
2022-06-30	481
2022-09-30	449
2022-12-31	493
2023-03-31	500
2023-06-30	516
2023-09-30	519