Quarterly 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