Quarter	US dollars
1993-06-30	1
1993-09-30	0
1993-12-31	0
1994-03-31	1
1994-06-30	23
1994-09-30	33
1994-12-31	0
1995-03-31	36
1995-06-30	39
1995-09-30	19
1995-12-31	35
1996-03-31	33
1996-06-30	29
1996-09-30	1
1996-12-31	1
1997-03-31	1
1997-06-30	3
1997-09-30	9
1997-12-31	25
1998-03-31	35
1998-06-30	50
1998-09-30	78
1998-12-31	70
1999-03-31	66
1999-06-30	74
1999-09-30	50
1999-12-31	54
2000-03-31	67
2000-06-30	67
2000-09-30	39
2000-12-31	36
2001-03-31	37
2001-06-30	36
2001-09-30	28
2001-12-31	47
2002-03-31	36
2002-06-30	39
2002-09-30	30
2002-12-31	50
2003-03-31	62
2003-06-30	67
2003-09-30	70
2003-12-31	79
2004-03-31	58
2004-06-30	31
2004-09-30	89
2004-12-31	137
2005-03-31	118
2005-06-30	153
2005-09-30	167
2005-12-31	199
2006-03-31	217
2006-06-30	458
2006-09-30	483
2006-12-31	541
2007-03-31	733
2007-06-30	1215
2007-09-30	1499
2007-12-31	1600
2008-03-31	1594
2008-06-30	1410
2008-09-30	1299
2008-12-31	1193
2009-03-31	971
2009-06-30	1095
2009-09-30	1015
2009-12-31	806
2010-03-31	617
2010-06-30	600
2010-09-30	632
2010-12-31	564
2011-03-31	609
2011-06-30	450
2011-09-30	474
2011-12-31	436
2012-03-31	572
2012-06-30	486
2012-09-30	446
2012-12-31	507
2013-03-31	270
2013-06-30	252
2013-09-30	204
2013-12-31	216
2014-03-31	295
2014-06-30	261
2014-09-30	222
2014-12-31	185
2015-03-31	84
2015-06-30	102
2015-09-30	128
2015-12-31	144
2016-03-31	126
2016-06-30	73
2016-09-30	287
2016-12-31	96
2017-03-31	93
2017-06-30	63
2017-09-30	18
2017-12-31	109
2018-03-31	181
2018-06-30	68
2018-09-30	93
2018-12-31	90
2019-03-31	697
2019-06-30	1121
2019-09-30	1438
2019-12-31	1269
2020-03-31	1412
2020-06-30	1334
2020-09-30	1513
2020-12-31	883
2021-03-31	57
2021-06-30	308
2021-09-30	115
2021-12-31	101
2022-03-31	54
2022-06-30	25
2022-09-30	24
2022-12-31	30
2023-03-31	50
2023-06-30	55
2023-09-30	70