Quarter	US dollars
2004-12-31	1684
2005-03-31	1915
2005-06-30	771
2005-09-30	1226
2005-12-31	1500
2006-03-31	1769
2006-06-30	1631
2006-09-30	1134
2006-12-31	1638
2007-03-31	983
2007-06-30	1248
2007-09-30	2121
2007-12-31	2078
2008-03-31	700
2008-06-30	997
2008-09-30	643
2008-12-31	124
2009-03-31	229
2009-06-30	313
2009-09-30	219
2009-12-31	147
2010-03-31	138
2010-06-30	136
2010-09-30	176
2010-12-31	188
2011-03-31	189
2011-06-30	146
2011-09-30	143
2011-12-31	707
2012-03-31	860
2012-06-30	822
2012-09-30	738
2012-12-31	133
2013-03-31	128
2013-06-30	144
2013-09-30	146
2013-12-31	145
2014-03-31	68
2014-06-30	186
2014-09-30	135
2014-12-31	145
2015-03-31	251
2015-06-30	145
2015-09-30	86
2015-12-31	12
2016-03-31	3
2016-06-30	8
2016-09-30	5
2016-12-31	39
2017-03-31	10
2017-06-30	199
2017-09-30	317
2017-12-31	219
2018-03-31	330
2018-06-30	370
2018-09-30	333
2018-12-31	347
2019-03-31	206
2019-06-30	234
2019-09-30	235
2019-12-31	217
2020-03-31	222
2020-06-30	146
2020-09-30	133
2020-12-31	134
2021-03-31	186
2021-06-30	202
2021-09-30	189
2021-12-31	230
2022-03-31	229
2022-06-30	194
2022-09-30	239
2022-12-31	263
2023-03-31	234
2023-06-30	149
2023-09-30	118