Quarter	US dollars
1999-03-31	1919
1999-06-30	1183
1999-09-30	2073
1999-12-31	1417
2000-03-31	1622
2000-06-30	2516
2000-09-30	2771
2000-12-31	2632
2001-03-31	2212
2001-06-30	1786
2001-09-30	2226
2001-12-31	283
2002-03-31	23
2002-06-30	5
2002-09-30	8
2002-12-31	15
2003-03-31	4
2003-06-30	12
2003-09-30	15
2003-12-31	68
2004-03-31	69
2004-06-30	47
2004-09-30	13
2004-12-31	39
2005-03-31	39
2005-06-30	210
2005-09-30	46
2005-12-31	48
2006-03-31	51
2006-06-30	72
2006-09-30	41
2006-12-31	98
2007-03-31	96
2007-06-30	99
2007-09-30	51
2007-12-31	71
2008-03-31	73
2008-06-30	53
2008-09-30	72
2008-12-31	189
2009-03-31	549
2009-06-30	147
2009-09-30	140
2009-12-31	96
2010-03-31	55
2010-06-30	78
2010-09-30	71
2010-12-31	105
2011-03-31	99
2011-06-30	95
2011-09-30	144
2011-12-31	91
2012-03-31	150
2012-06-30	107
2012-09-30	88
2012-12-31	85
2013-03-31	188
2013-06-30	49
2013-09-30	80
2013-12-31	37
2014-03-31	53
2014-06-30	42
2014-09-30	51
2014-12-31	38
2015-03-31	79
2015-06-30	55
2015-09-30	39
2015-12-31	39
2016-03-31	59
2016-06-30	42
2016-09-30	60
2016-12-31	50
2017-03-31	41
2017-06-30	58
2017-09-30	45
2017-12-31	47
2018-03-31	130
2018-06-30	42
2018-09-30	42
2018-12-31	29
2019-03-31	44
2019-06-30	57
2019-09-30	71
2019-12-31	59
2020-03-31	101
2020-06-30	41
2020-09-30	66
2020-12-31	76
2021-03-31	75
2021-06-30	34
2021-09-30	19
2021-12-31	11
2022-03-31	8
2022-06-30	10
2022-09-30	26
2022-12-31	9
2023-03-31	9
2023-06-30	19
2023-09-30	19