Quarter	US dollars
2004-12-31	1233
2005-03-31	915
2005-06-30	715
2005-09-30	288
2005-12-31	208
2006-03-31	193
2006-06-30	196
2006-09-30	338
2006-12-31	329
2007-03-31	979
2007-06-30	1846
2007-09-30	3989
2007-12-31	2258
2008-03-31	56
2008-06-30	54
2008-09-30	18
2008-12-31	3
2009-03-31	24
2009-06-30	64
2009-09-30	78
2009-12-31	121
2010-03-31	124
2010-06-30	168
2010-09-30	159
2010-12-31	94
2011-03-31	200
2011-06-30	225
2011-09-30	223
2011-12-31	221
2012-03-31	288
2012-06-30	298
2012-09-30	339
2012-12-31	341
2013-03-31	402
2013-06-30	416
2013-09-30	385
2013-12-31	345
2014-03-31	172
2014-06-30	183
2014-09-30	186
2014-12-31	192
2015-03-31	200
2015-06-30	186
2015-09-30	191
2015-12-31	207
2016-03-31	256
2016-06-30	269
2016-09-30	292
2016-12-31	375
2017-03-31	510
2017-06-30	540
2017-09-30	589
2017-12-31	692
2018-03-31	634
2018-06-30	722
2018-09-30	789
2018-12-31	826
2019-03-31	371
2019-06-30	154
2019-09-30	97
2019-12-31	83
2020-03-31	68
2020-06-30	36
2020-09-30	30
2020-12-31	52
2021-03-31	57
2021-06-30	102
2021-09-30	120
2021-12-31	159
2022-03-31	140
2022-06-30	61
2022-09-30	51
2022-12-31	73
2023-03-31	73
2023-06-30	29
2023-09-30	46