Quarter	US dollars
2004-12-31	50
2005-03-31	539
2005-06-30	941
2005-09-30	458
2005-12-31	228
2006-03-31	2140
2006-06-30	2114
2006-09-30	1988
2006-12-31	2969
2007-03-31	1030
2007-06-30	1053
2007-09-30	1699
2007-12-31	1885
2008-03-31	1809
2008-06-30	1270
2008-09-30	223
2008-12-31	243
2009-03-31	218
2009-06-30	273
2009-09-30	256
2009-12-31	368
2010-03-31	443
2010-06-30	482
2010-09-30	607
2010-12-31	692
2011-03-31	619
2011-06-30	499
2011-09-30	444
2011-12-31	448
2012-03-31	457
2012-06-30	264
2012-09-30	276
2012-12-31	275
2013-03-31	254
2013-06-30	241
2013-09-30	241
2013-12-31	221
2014-03-31	130
2014-06-30	121
2014-09-30	126
2014-12-31	114
2015-03-31	110
2015-06-30	113
2015-09-30	109
2015-12-31	122
2016-03-31	124
2016-06-30	164
2016-09-30	164
2016-12-31	156
2017-03-31	89
2017-06-30	83
2017-09-30	72
2017-12-31	53
2018-03-31	49
2018-06-30	30
2018-09-30	17
2018-12-31	37
2019-03-31	44
2019-06-30	67
2019-09-30	155
2019-12-31	50
2020-03-31	148
2020-06-30	109
2020-09-30	101
2020-12-31	102
2021-03-31	105
2021-06-30	106
2021-09-30	80
2021-12-31	89
2022-03-31	76
2022-06-30	73
2022-09-30	82
2022-12-31	50
2023-03-31	43
2023-06-30	46
2023-09-30	46