Quarter	US dollars
2004-12-31	69
2005-03-31	83
2005-06-30	73
2005-09-30	122
2005-12-31	180
2006-03-31	198
2006-06-30	235
2006-09-30	209
2006-12-31	258
2007-03-31	288
2007-06-30	281
2007-09-30	383
2007-12-31	321
2008-03-31	348
2008-06-30	348
2008-09-30	267
2008-12-31	282
2009-03-31	431
2009-06-30	328
2009-09-30	318
2009-12-31	344
2010-03-31	252
2010-06-30	295
2010-09-30	271
2010-12-31	387
2011-03-31	279
2011-06-30	311
2011-09-30	313
2011-12-31	247
2012-03-31	371
2012-06-30	336
2012-09-30	276
2012-12-31	267
2013-03-31	187
2013-06-30	215
2013-09-30	248
2013-12-31	243
2014-03-31	197
2014-06-30	313
2014-09-30	232
2014-12-31	148
2015-03-31	160
2015-06-30	151
2015-09-30	212
2015-12-31	237
2016-03-31	174
2016-06-30	70
2016-09-30	84
2016-12-31	101
2017-03-31	106
2017-06-30	132
2017-09-30	165
2017-12-31	190
2018-03-31	194
2018-06-30	153
2018-09-30	295
2018-12-31	222
2019-03-31	119
2019-06-30	159
2019-09-30	290
2019-12-31	213
2020-03-31	139
2020-06-30	73
2020-09-30	43
2020-12-31	30
2021-03-31	138
2021-06-30	206
2021-09-30	189
2021-12-31	5
2022-03-31	18
2022-06-30	61
2022-09-30	167
2022-12-31	166
2023-03-31	158
2023-06-30	186
2023-09-30	220