Quarter	US dollars
1993-12-31	6
1994-03-31	6
1994-06-30	6
1994-09-30	6
1994-12-31	6
1995-03-31	0
1995-06-30	1
1995-09-30	3
1995-12-31	2
1996-03-31	2
1996-06-30	76
1996-09-30	22
1996-12-31	59
1997-03-31	73
1997-06-30	108
1997-09-30	147
1997-12-31	144
1998-03-31	179
1998-06-30	161
1998-09-30	176
1998-12-31	203
1999-03-31	195
1999-06-30	178
1999-09-30	178
1999-12-31	264
2000-03-31	343
2000-06-30	319
2000-09-30	278
2000-12-31	248
2001-03-31	157
2001-06-30	228
2001-09-30	251
2001-12-31	190
2002-03-31	223
2002-06-30	245
2002-09-30	197
2002-12-31	180
2003-03-31	194
2003-06-30	154
2003-09-30	169
2003-12-31	147
2004-03-31	79
2004-06-30	69
2004-09-30	85
2004-12-31	99
2005-03-31	81
2005-06-30	36
2005-09-30	45
2005-12-31	52
2006-03-31	82
2006-06-30	84
2006-09-30	36
2006-12-31	96
2007-03-31	73
2007-06-30	91
2007-09-30	410
2007-12-31	228
2008-03-31	113
2008-06-30	123
2008-09-30	98
2008-12-31	197
2009-03-31	269
2009-06-30	266
2009-09-30	319
2009-12-31	330
2010-03-31	316
2010-06-30	333
2010-09-30	526
2010-12-31	440
2011-03-31	306
2011-06-30	279
2011-09-30	381
2011-12-31	248
2012-03-31	243
2012-06-30	264
2012-09-30	266
2012-12-31	293
2013-03-31	369
2013-06-30	366
2013-09-30	271
2013-12-31	301
2014-03-31	343
2014-06-30	329
2014-09-30	341
2014-12-31	231
2015-03-31	96
2015-06-30	88
2015-09-30	119
2015-12-31	172
2016-03-31	173
2016-06-30	229
2016-09-30	186
2016-12-31	114
2017-03-31	361
2017-06-30	194
2017-09-30	48
2017-12-31	118
2018-03-31	376
2018-06-30	334
2018-09-30	63
2018-12-31	96
2019-03-31	187
2019-06-30	140
2019-09-30	125
2019-12-31	103
2020-03-31	140
2020-06-30	103
2020-09-30	114
2020-12-31	89
2021-03-31	38
2021-06-30	16
2021-09-30	58
2021-12-31	40
2022-03-31	8
2022-06-30	16
2022-09-30	26
2022-12-31	47
2023-03-31	272
2023-06-30	173
2023-09-30	149